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    • 专利摘要:
    A method for producing the first catalyst composition is provided. The method includes contacting at least one first organometallic compound with at least one active agent to produce a first catalyst composition. The active agent is selected from the group consisting of aluminoxanes, fluoro-organic borates, and treated solid oxide components in combination with at least one organoaluminum compound. In another aspect of the invention, a process for the preparation of a second catalyst composition for bimodal polymer production is provided. The method includes contacting at least one first organometallic compound, at least one active agent, and at least one second organometallic compound to produce a second catalyst composition. Also provided are first and second catalyst compositions and polymerization methods for producing polymers using such compositions.
    公开号:KR20020093992A
    申请号:KR1020027014468
    申请日:2001-04-27
    公开日:2002-12-16
    发明作者:젠슨마이클디.；맥대니얼맥스피.；벤햄엘리자베쓰에이.；이튼앤터니피.；마틴조엘엘.；홀리질알.；크레인토니알.；태너마르타제이.
    申请人:휘립프스피트로오리암캄파니；
    IPC主号:
    专利说明:

    POLYMERIZATION CATALYST COMPOSITIONS AND PROCESSES TO PRODUCE POLYMERS AND BIMODAL POLYMERS}
    [2] Zirconium-based metallocene polymerization catalysts such as bis (cyclopentadienyl) zirconium dichloride are well known and are commonly used as ethylene polymerization catalysts when combined with active agents such as, for example, methylaluminoxane (MAO). The description of such catalysts is described, for example, in Angew. Chem. 88, 689, 1976, Justus Liebigs Ann. Chem. 1975, 463 and US Pat. No. 5,324,800. Zirconium-based metallocenes can be very active, but unfortunately these metallocenes also result in very narrow molecular weight distributions.
    [3] For many extrusion grade applications such as films, pipes, and blow molding, polymers with a broad molecular weight distribution are preferred. Particularly preferred is the so-called "both distribution" polymer because of the excellent toughness imparted to the final produced resin part. For example, U.S. Patent 5,306,775 and U.S. See patent 5,319,029. Good toughness can result from the concentration of short chain branching in the high molecular weight portion of the molecular weight distribution. Extremely long and highly branched chains may be more effective as tie molecules between crystal phases. These tie molecules can impart higher impact resistance and environmental stress cracking resistance to the bimodal polymer.
    [4] In order to produce such bimodal polymers from metallocene catalysts it is necessary to combine the two metallocenes. The first metallocene is used to produce low molecular weight polymers with low branching. Zirconium-based metallocenes can function well in this role. Second metallocenes are used in the production of high molecular weight polymers, and these second metallocenes must also very well incorporate comonomers such as hexene at the same time. In this way, the longest chains have the most branching, which is ideal for the production of bimodal polymers.
    [5] Unfortunately, the requirements of the second metallocene are difficult to meet. Of the zirconium-based metallocenes described above, only a few produce very high molecular weight polymers. Some of these are often insufficient in activity or stability, and comonomer incorporation is not impressive. The second class of metallocene catalysts, called semi-sandwich titanium-based metallocenes, produce very high molecular weight polymers and some also incorporate hexene well. See Organometallics, 1966, 15, 693-703 and Macromolecules 1998, 31, 7558-7597. Semi-sandwich titanium based metallocenes have titanium bonded to one cyclopentadienyl, indenyl, or fluorenyl group. However, these compounds are not noted for their high activity.
    [6] There is a need in the polymer industry for metallocene catalysts or organometallic catalysts that produce high molecular weight polymers, have high activity, and efficiently incorporate comonomers that can be used alone or in combination with other metallocenes.
    [7] It is desirable to provide a first organometallic compound capable of producing a high molecular weight polymer.
    [8] It is also desirable to provide a method for producing the first catalyst composition. The method includes contacting at least one first organometallic compound with at least one active agent.
    [9] It is also desirable to provide a first catalyst composition.
    [10] It is also preferable to provide a polymerization method. The method comprises contacting the first catalyst composition with at least one alpha olefin in a polymerization zone under polymerization conditions to produce a high molecular weight polymer.
    [11] It is also desirable to provide high molecular weight polymers.
    [12] It is also desirable to provide a process for preparing a second catalyst composition capable of producing a bimodal polymer. The method includes contacting a first organometallic compound, at least one active agent, and at least one second organometallic compound.
    [13] It is also desirable to provide a second catalyst composition capable of producing a bimodal polymer.
    [14] It is also desirable to provide a process for producing bimodal polymers. The method includes contacting a second catalyst composition with one or more alpha olefins in a polymerization zone under polymerization conditions to produce a bimodal polymer.
    [15] It is also desirable to provide a bimodal polymer.
    [16] According to one aspect of the present invention, a method for producing a first catalyst composition is provided. The method comprises contacting at least one organometallic compound with at least one active agent to produce a first catalyst composition;
    [17] Wherein the first organometallic compound is represented by the formula R 2 CpM 1 -OM 2 CpR 2 ,
    [18] In the formula, M 1 is selected from the group consisting of titanium, zirconium, and hafnium;
    [19] M 2 is selected from the group consisting of transition metals, lanthanide metals, actinide metals, group IIIB metals, group IVB metals, group VB metals, and group VIB metals;
    [20] Cp is independently selected from the group consisting of cyclopentadienyl, indenyl, fluorenyl, substituted cyclopentadienyl, substituted indenyl, and substituted fluorenyl;
    [21] Substituents on substituted cyclopentadienyl, substituted indenyl, and substituted fluorenyl of Cp are aliphatic groups, cyclic groups, combinations of aliphatic and cyclic groups, silyl groups, alkyl halide groups, halides, organometallic groups, phosphorus Group, nitrogen group, silicon, phosphorus, boron, germanium, and hydrogen;
    [22] R is a halide, aliphatic group, substituted aliphatic group, cyclic group, substituted cyclic group, combination of aliphatic group and cyclic group, combination of substituted aliphatic group and cyclic group, combination of aliphatic group and substituted cyclic group, substitution Combinations of aliphatic and substituted cyclic groups, amido groups, substituted amido groups, phosphido groups, substituted phosphido groups, alkyloxide groups, substituted alkyloxide groups, aryloxide groups, substituted aryloxide groups, organometallic groups, And a substituted organometallic group independently;
    [23] The active agent is selected from the group consisting of aluminoxanes, fluoro-organic borates, and treated solid oxide components in combination with at least one organoaluminum compound.
    [24] In another aspect of the present invention, a method of preparing a second catalyst composition for preparing a bimodal polymer is provided. The method includes contacting at least one first organometallic compound, at least one active agent, and at least one second organometallic compound to produce a second catalyst composition;
    [25] The second organometallic compound is represented by the formula (C 5 R 5 ) 2 ZrX 2 ;
    [26] In formula, R is the same or different and is independently selected from the group consisting of hydrogen and hydrocarbyl groups having 1 to about 10 carbon atoms;
    [27] The hydrocarbyl group is selected from the group consisting of straight or branched alkyl, substituted or unsubstituted aryl, and alkylaryl;
    [28] X is the same or different and is independently selected from the group consisting of halides, alkyl, alkylaryl having 1 to about 10 carbon atoms, and triflate.
    [1] The present invention relates to the field of polymerization catalyst compositions.
    [29] 1 is a graph showing polymer molecular weight distribution (MWD). The normalized weight fraction [dW / d (log M)] per increment of log M is plotted as a function of molecular weight (M) expressed in grams per mole (g / mol) constructed on a logarithmic (log) scale.
    [30] In a first aspect of the invention, a method of preparing a first catalyst composition is provided. The method includes the step of contacting at least one first organometallic compound with at least one active agent. The first organometallic compound is represented by the formula:
    [31] Chemical formula
    [32] R 2 CpM 1 -OM 2 CpR 2
    [33] Wherein M 1 is selected from the group consisting of titanium, zirconium, and hafnium. In general, it is preferred when M 1 is titanium. M 2 is selected from the group consisting of transition metals, lanthanides, actinides, group IIIB metals, group IVB metals, group VB metals, and group VIB metals. Preferably, M 2 is titanium.
    [34] In this formula, Cp is cyclopentadienyl, indenyl, fluorenyl, substituted cyclopentadienyl, substituted indenyl (eg, tetrahydroindenyl), and substituted fluorenyl (eg, octahydro Fluorenyl).
    [35] Substituents on substituted cyclopentadienyl, substituted indenyl, and substituted fluorenyl of Cp are aliphatic groups, cyclic groups, aliphatic groups, unless they substantially and adversely affect the polymerization activity of the first organometallic compound. And cyclic groups, silyl groups, alkyl halide groups, halides, organometallic groups, phosphorus groups, nitrogen groups, silicon, phosphorus, boron, germanium, and hydrogen.
    [36] Suitable examples of aliphatic groups are hydrocarbyls such as, for example, paraffins and olefins. Suitable examples of cyclic groups are cycloparaffins, cycloolefins, cycloacetylenes, and arenes. Substituted silyl groups include, but are not limited to, alkylsilyl groups, arylsilyl groups, and arylalkylsilyl groups, where each alkyl group contains 1 to about 12 carbon atoms. Suitable alkyl halide groups have 1 to about 12 alkyl groups. Suitable organometallic groups include, but are not limited to, substituted silyl derivatives, substituted tin groups, substituted germanium groups, and substituted boron groups.
    [37] Suitable examples of such substituents are methyl, ethyl, propyl, butyl, tert-butyl, isobutyl, amyl, isoamyl, hexyl, cyclohexyl, heptyl, octyl, nonyl, decyl, dodecyl, 2-ethylhexyl, pentenyl, Butenyl, phenyl, chloro, bromo, iodo, trimethylsilyl, and phenyloctylsilyl.
    [38] In this formula, R is a halide, aliphatic group, substituted aliphatic group, cyclic group, substituted cyclic group, combination of aliphatic group and cyclic group, combination of substituted aliphatic group and cyclic group, aliphatic group and substituted cyclic group , A combination of a substituted aliphatic group and a substituted cyclic group, an amido group, a substituted amido group, a phosphido group, a substituted phosphido group, an alkyl oxide group, a substituted alkyl oxide group, an aryl oxide group, a substituted aryl oxide group, Independently selected from the group consisting of an organometallic group and a substituted organometallic group.
    [39] Preferably, the first organometallic compound may be represented by the formula:
    [40] Chemical formula
    [41] (C 5 R 5 ) TiX 2 -O- (C 5 R 5 ) TiX 2
    [42] Wherein each R is the same or different and is independently selected from the group consisting of hydrogen and hydrocarbyl groups having 1 to about 10 carbon atoms. The hydrocarbyl group is selected from the group consisting of straight or branched alkyl, substituted or unsubstituted aryl, and alkylaryl. X is the same or different and is independently selected from the group consisting of halides, alkyl, alkylaryl having 1 to about 10 carbon atoms, and triflate. Suitable first organometallic compounds are, for example, [(C 5 H 4 CH 3 ) TiCl 2 ] 2 O, [(C 5 H 4 CH 2 C 6 H 5 ) TiF 2 ] 2 O, [(C 5 H 3 CH 3 C 2 H 5 ) TiBr 2 ] O, and [(C 5 H 5 ) TiCl 2 ] 2 O. Most preferably, the first organometallic compound is [(C 5 H 5 ) TiCl 2 ] 2 O. Combinations of these first organometallic compounds may also be used.
    [43] Aluminoxane, fluoro-organic borate, and at least one treated solid oxide component in combination with at least one organoaluminum compound.
    [44] Aluminoxanes, also referred to as poly (hydrocarbyl aluminum oxide), are well known in the art and are generally prepared by reacting a hydrocarbyl-aluminum compound with water. This manufacturing technique is described in U.S. Patent No. 3,242,099 and 4,808,561. Generally preferred aluminoxanes are prepared from trimethylaluminum or triethylaluminum and each is often referred to as poly (methylaluminum oxide) and poly (ethylaluminum oxide). Also within the scope of the present invention are U.S. Patent No. As disclosed in 4,794,096, use of aluminoxanes in combination with trialkylaluminum is also included.
    [45] In general, the amount of aluminoxane capable of activating the first organometallic compound is used in the present invention. Preferably, the molar ratio of the transition metal in the aluminum to the metallocene in the aluminoxane is in the range of about 1: 1 to about 100,000: 1, most preferably 5: 1 to 15,000: 1. Generally, the amount of aluminoxane added to the polymerization zone is in the range of about 0.01 to about 1000 mg / L, preferably about 0.1 to about 100 mg / L. Most preferably, the amount of aluminoxane added is in the range of 1-50 mg / L to maximize catalyst productivity and activity.
    [46] Fluoro-organic borate compounds may also be used to activate and form the first catalyst composition. Any fluoro-organic borate compound known in the art that can activate the organometallic compound can be used. Examples of such fluoro-organic borate compounds include N, N-dimethylanilinium tetrakis (pentafluorophenyl) borate, triphenylcarbenium tetrakis (pentafluorophenyl) borate, lithium tetrakis (pentafluorophenyl) Borate, tris (pentafluorophenyl) boron, N, N-dimethylanilinium tetrakis [3,5-bis (trifluoromethyl) phenyl] borate, triphenylcarbenium tetrakis [3,5-bis (tri Fluorinated aryl borates such as fluoromethyl) phenyl] borate, and mixtures thereof. Although not wishing to be bound by theory, examples of fluoro-organic borate compounds and related fluoro-organic borates are described in U.S. Pat. It is thought to form an “weakly-coordinated” anion when combined with an organometallic compound as disclosed in patent 5,919,983.
    [47] In general, the amount of fluoro-organic borate compound capable of activating the organometallic compound is used in the present invention. Preferably, the amount of fluoro-organic borate compound ranges from about 0.5 to about 10 moles of fluoro-organic borate compound per mole of organometallic compound. Most preferably, the amount of fluoro-organic borate compound ranges from 0.8 to 5 moles of fluoro-organic borate compound per mole of organometallic compound.
    [48] Aluminoxanes and fluoro-organic borate compounds may be supported or non-supported. When supported, the support is generally an inorganic oxide such as silica, aluminate, or a combination thereof. The use of supported active agents can produce heterogeneous catalyst compositions, and non-supported active agents can produce homogeneous catalyst compositions.
    [49] Preferably, the active agent is a treated solid oxide component used in parallel with the organoaluminum compound. The treated solid oxide component is a halide solid oxide component or a halide metal-containing solid oxide component. Halide solid oxide components include halogens and solid oxide components. Halide metal-containing solid oxide components include halogen, metal, and solid oxide components.
    [50] The organoaluminum compound can be represented by the following formula:
    [51] Chemical formula
    [52] AlR 3-n X n
    [53] Wherein R is the same or different and is selected from the group consisting of hydrides and hydrocarbyl groups having 1 to about 10 carbon atoms. Hydrocarbyl groups are selected from the group consisting of straight or branched alkyl, substituted or unsubstituted aryl and alkylaryl. X is selected from the group consisting of halides and hydrocarbyl oxides. Hydrocarbyl oxide is selected from the group consisting of straight or branched chain alkoxides, substituted or unsubstituted aryl oxides and alkylaryl oxides. n is 1 or 0. Suitable organo-aluminum compounds include, for example, triisobutylaluminum, diethylaluminum hydride, dipentylaluminum ethoxide, dipropylaluminum phenoxide, and mixtures thereof. Preferably, the organoaluminum compound is trialkylaluminum. Most preferably triisobutylaluminum or triethylaluminum. Combinations of these organoaluminum compounds may also be used.
    [54] The solid oxide component is prepared from an aluminate selected from the group consisting of alumina, silica-alumina, aluminophosphate, aluminoborate, and mixtures thereof. Preferably, the solid oxide component is alumina. Halogen is selected from the group consisting of chlorine and bromine. Preferably, for the highest activity, halogen is chlorine. The metal is selected from the group consisting of zinc, nickel, vanadium, silver, copper, gallium, tin, tungsten, and molybdenum. Preferably, the metal is zinc for high activity and low cost.
    [55] The solid oxide component has a pore volume of greater than about 0.5 cc / g, preferably greater than about 0.8 cc / g, most preferably greater than 1.0 cc / g. The solid oxide component is in the range of about 100 to about 1000 m 2 / g, preferably about 200 to about 800 m 2 / g, most preferably 250 to 600 m 2 / g.
    [56] To produce the halide solid oxide component, the solid oxide component is calcined before, during or after contact with the halogen-containing compound. Generally, calcination is carried out for about 1 minute to about 100 hours, preferably about 1 to about 50 hours, most preferably 3 to 20 hours. Calcination is performed at a temperature in the range of about 200 to about 900 ° C., preferably in the range of about 300 to about 800 ° C., and most preferably in the range of 400 to 700 ° C. Suitable types of atmosphere may be used during calcination. In general, calcination can be completed in an inert atmosphere. Alternatively, for example, an oxidizing atmosphere such as oxygen or air or a reducing atmosphere such as for example hydrogen or carbon monoxide may be used.
    [57] The halogen-containing compound is at least one compound selected from the group consisting of chlorine-containing compounds and bromine-containing compounds. The halogen-containing compound may be in liquid or preferably vapor phase. The solid oxide component can be contacted with the halogen-containing compound by means known in the art. Preferably, the halogen-containing compound can be evaporated into the gas stream used to fluidize the solid oxide component during calcination. The solid oxide component is generally in contact with the halogen-containing compound for about 1 minute to about 10 hours, preferably about 5 minutes to about 2 hours, most preferably 10 minutes to 30 minutes. In general, the solid oxide component is contacted with a halogen-containing compound at a temperature in the range of about 200 to about 900 ° C., preferably in the range of about 300 to about 800 ° C., and most preferably in the range of 400 to 700 ° C. Suitable types of atmospheres can be used to contact the solid oxide component with the halogen-containing compound. Preferably, an inert atmosphere is used. Alternatively, oxidizing or reducing atmospheres can also be used.
    [58] Suitable halogen-containing compounds include volatile or liquid organic chlorides or bromide compounds and inorganic chlorides or bromide compounds. The organic chloride or bromide compound may be selected from the group consisting of carbon tetrachloride, chloroform, dichloroethane, hexachlorobenzene, trichloroacetic acid, bromoform, dibromomethane, perbromopropane, and mixtures thereof. Inorganic chloride or bromide compounds include gaseous hydrogen chloride, silicon tetrachloride, tin tetrachloride, titanium tetrachloride, aluminum trichloride, boron trichloride, thionyl chloride, sulfuryl chloride, hydrogen bromide, boron tribromide, silicon tetrabromide, and It may be selected from the group consisting of a mixture thereof. In addition, chlorine and bromine gases can be used. Optionally, fluorine-containing compounds or fluorine gas may also be included in some cases when trying to achieve higher activity by contacting a solid oxide component with a halogen-containing compound.
    [59] The amount of halogen present in the halide solid oxide component generally ranges from about 2 to about 150 weight percent, preferably from about 10 to about 100 weight percent, most preferably from 15 to 75 weight percent, with the weight percent being the halide prior to calcination. It is based on the weight of the oxidized solid oxide component or the amount added to the precalcined solid oxide component.
    [60] In order to produce the halide metal-containing solid oxide component, the solid oxide is first treated with a metal-containing compound. The metal-containing compound can be added to the solid oxide component by any method known in the art. In the first method, metals are disclosed in US Pat. 3,119,569; 4,405,501; 4,436,882; 4,436,883; 4,392,990; 4,081,407; 4,981,831; And 4,152,503, an aqueous material may be added to the solid oxide component by cogelling.
    [61] In a second method, metal-containing compounds are disclosed in US Pat. No. 4,301,034; 4,547,557; And cogelling in organic or anhydrous solutions as described in 4,339,559.
    [62] A preferred method is to impregnate the solid oxide component with an aqueous or organic solution of the metal-containing compound prior to calcination to produce the metal-containing solid oxide component. An appropriate amount of solution is used to provide the desired concentration of metal after drying. The metal-containing solid oxide component is then dried by any suitable method known in the art. For example, drying may be carried out by vacuum drying, spray drying, or flash drying.
    [63] Any metal-containing compound known in the art that can impregnate the solid oxide component with the desired metal can be used in the present invention. The metal-containing compound can be any water soluble salt, such as, for example, nickel nitrate, zinc chloride, copper sulfate, silver acetate, or vanadil sulfate. The metal-containing compound may also be an organometallic compound such as, for example, nickel acetylacetonate, vanadium ethylhexanoate, zinc naphthenate, and mixtures thereof.
    [64] In general, the amount of metal present before calcination ranges from about 0.1 to about 10 mmol per gram of solid oxide component. Preferably, the amount of metal present before calcination ranges from about 0.5 to about 5 mmol per gram of solid oxide component. Most preferably, the amount of metal present before calcination is in the range of 1 to 3 mmol per gram of solid oxide component.
    [65] The solid oxide component is combined with the metal-containing compound to produce a metal-containing solid oxide component, which is then about 1 minute to about 100 hours, preferably about 1 hour to about 50 hours, most preferably 3 hours to 20 Calculate this for hours. Calcination is carried out at a temperature in the range from about 200 to about 900 ° C, preferably at a temperature in the range from about 300 to about 800 ° C, and most preferably at a temperature in the range from 400 to 700 ° C. Any suitable type of atmosphere may be used during calcination. In general, calcination can be completed in an inert atmosphere. Alternatively, for example, an oxidizing atmosphere such as oxygen or air or a reducing atmosphere such as for example hydrogen or carbon monoxide can be used.
    [66] After or during calcination, the metal-containing solid oxide component is contacted with a halogen containing compound to produce a halide metal-containing solid oxide component. The method of contacting the metal-containing solid oxide component with the halogen containing compound is the same as in the aforementioned halide solid oxide component.
    [67] Optionally, the metal-containing solid oxide component can be treated with a fluorine-containing compound prior to, during or after contacting the halogen-containing compound, which further increases activity. Any fluorine-containing compound can be used that can be contacted with the solid oxide component during the calcination step. Highly volatile organic fluorine-containing compounds are particularly useful. Such organic fluorine-containing compounds may be selected from the group consisting of freon, perfluorohexane, perfluorobenzene, fluoro-methane, trifluoroethanol, and mixtures thereof. It is also possible to use gaseous hydrogen fluoride or fluorine itself. Any conventional method of contacting the solid oxide component is to evaporate the fluorine-containing compound into the gas stream used to fluidize the solid oxide component during calcination.
    [68] In a preferred embodiment, a method of producing the first catalyst component is provided. The process comprises contacting an organoaluminum compound selected from the group consisting of bis (cyclopentadienyl titanium dichloride) oxide, (CpTiCl 2 ) 2 O, zinc chloride-containing alumina and triisobutyl aluminum and triethylaluminum Producing a catalyst composition. The amount of zinc is present in the range of about 0.5 to about 5 mmol per gram of alumina. The chloride treatment consists in exposing the volatile chlorine-containing compound at about 500 to about 700 ° C.
    [69] The catalyst component of the invention can be produced by contacting the first organometallic compound and the activator with each other. This contact can occur in a variety of ways such as for example blending. In addition, each compound may be fed into the reactor separately, or various combinations of these components may be contacted together prior to further contacting in the reactor, or all three compounds may be contacted together before introducing into the reactor.
    [70] In general, one method comprises, once for about one minute to about 24 hours, a first organometallic compound at a temperature of about 10 to about 100 ° C., preferably 15 to 50 ° C., such as a treated solid oxide component, Preferably, it is contacted for 1 minute to about 1 hour to form a first mixture, and then the first mixture is contacted with an organoaluminum compound to form a first catalyst composition.
    [71] Another method comprises about 1 minute to about 10 to about 200 ° C., preferably 20 to 80 ° C., before injecting the first organometallic compound, the organoaluminum compound, and the treated solid oxide component into the polymerization reactor. Pre-contact for about 24 hours, preferably 1 minute to 1 hour to produce the first catalyst composition.
    [72] The weight ratio of organoaluminum compound to treated solid oxide component in the first catalyst composition is about 5: 1 to about 1: 1000, preferably about 3: 1 to about 1: 100, most preferably 1: 1 to 1: 50 range.
    [73] The weight ratio of the solid oxide component treated to the first organometallic compound in the first catalyst composition is from about 10,000: 1 to about 1: 1, preferably from about 1000: 1 to about 10: 1, most preferably from 250: 1 to 20: 1 range. This ratio is based on the amount of components formulated to yield the first catalyst composition.
    [74] When using the treated solid oxide component after contacting the compound, the first catalyst composition comprises a post-contacted first organometallic compound, a post-contacted organoaluminum compound, and a post-contacted treated solid oxide component. do. Preferably, the catalyst composition consists essentially of the organometallic compound, the treated solid oxide compound and the organoaluminum compound. In another embodiment, the first catalyst composition is subsequently contacted with an organometallic compound, a treated solid oxide compound and an organo-aluminum compound consisting essentially of the organometallic compound and the treated solid oxide compound. The term “consisting essentially of” is intended to mean that the resulting first catalyst composition does not include any additional ingredients that would adversely affect the desired properties imparted to the composition by the ingredients recited before this expression. It should be noted that the post-contacted solid oxide component is most of the weight of the first catalyst composition. Often, certain components of the catalyst are unknown, and for this invention, therefore, the first catalyst composition is described as comprising a post-contacted compound.
    [75] The weight ratio of post-contacted organoaluminum compound to post-contacted treated solid oxide component in the first catalyst composition is about 5: 1 to about 1: 1000, preferably about 3: 1 to about 1: 100, most preferred Preferably 1: 1 to 1:50.
    [76] The weight ratio of post-contacted treated solid oxide component to post-contacted organometallic compound in the first catalyst composition is from about 10,000: 1 to about 1: 1, preferably from about 1000: 1 to about 10: 1, most preferred. Preferably in the range from 250: 1 to 20: 1.
    [77] When comparing the activities, the polymerization should be carried out under the same polymerization conditions. It is preferred that the activity of the first catalyst composition is greater than about 1000 g of polymer per g of active agent per hour, more preferably greater than about 2000 g and most preferably greater than 3000 g. This activity is measured under slurry polymerization conditions using a isobutane as diluent at a polymerization temperature of 90 ° C. and 550 psig ethylene pressure. The reactor should be substantially free of any signs of wall scale, coating or other forms of contamination.
    [78] One of the important aspects of the present invention is that there is no need for the aluminoxane used to form the first catalyst composition. Aluminoxanes are expensive compounds that greatly increase the cost of polymer products. This also means that no water is needed to help form these aluminoxanes. This is beneficial because water sometimes invalidates the polymerization process. It should also be noted that a fluoro-phenyl borate or other fluoro-organoboron compound used to form the first catalyst composition is required. In addition, no organic chromium compound or MgCl 2 need be added to the present invention. Aluminoxanes, fluoro-organoboron compounds, organic chromium compounds, or MgCl 2 are not required for the preferred embodiment, but such compounds may be used in other embodiments of the present invention.
    [79] In a second aspect of the invention, a method is provided comprising contacting at least one monomer with a first catalyst composition to produce at least one polymer. The term "polymer" as used herein includes homopolymers and copolymers. The first catalyst composition can be used to polymerize at least one monomer to produce a homopolymer or copolymer. Usually, homopolymers consist of monomeric residues having from 2 to about 20 carbon atoms per molecule, preferably from 2 to about 10 carbon atoms per molecule. Generally, at least one monomer is ethylene, propylene, 1-butene, 3-methyl-1-butene, 1-pentene, 3-methyl-1-pentene, 4-methyl-1-pentene, 1-hexene, 3- Preference is given to being selected from the group consisting of ethyl-1-hexene, 1-heptene, 1-octene, 1-nonene, 1-decene and mixtures thereof.
    [80] If homopolymers are desired, it is most preferred to polymerize ethylene or propylene. If a copolymer is desired, the copolymer comprises monomer residues and one or more comonomer residues having about 2 to about 20 carbon atoms each, per molecule. Suitable comonomers are, for example, aliphatic 1-olefins having 3 to 20 carbon atoms per molecule such as propylene, 1-butene, 1-pentene, 4-methyl-1-pentene, 1-hexene, 1-octene, And other olefins and conjugated or non-conjugated such as 1,3-butadiene, isoprene, piperylene, 2,3-dimethyl-1,3-butadiene, 1,4-pentadiene, 1,7-hexadiene and other such diolefins Liquid diolefins, and mixtures thereof, including but not limited to. If a copolymer is desired, it is preferred to polymerize ethylene with at least one comonomer selected from the group consisting of 1-butene, 1-pentene, 1-hexene, 1-octene, and 1-decene. The amount of comonomer introduced into the reaction zone to produce the copolymer is generally from about 0.01 to about 10 wt%, preferably from about 0.01 to about 5 wt%, most preferably 0.1 based on the total weight of monomers and comonomers. To 4 wt%. Alternatively, an amount sufficient to calculate the concentration (wt%) in the copolymer produced may be used.
    [81] Methods that can produce polymers by polymerizing at least one monomer are known in the art, for example, slurry polymerization, gas phase polymerization, solution polymerization, and the like. Preference is given to performing slurry polymerization in a loop reaction zone. Suitable diluents used for slurry polymerization are well known in the art and include hydrocarbons which are liquid under reaction conditions. The term "diluent" as used herein does not necessarily mean only inert materials; Diluents may contribute to the polymerization. Suitable hydrocarbons include, but are not limited to, cyclohexane, isobutane, n-butane, propane, n-pentane, isopentane, neopentane, and n-hexane. In slurry polymerization, isobutane is most preferably used as a diluent. Examples of such techniques are described in US Pat. No. 4,424,341; 4,501,885; 4,613,484; 4,737,280; And 5,597,892.
    [82] The first catalyst composition used in the process produces good polymer particles without substantially contaminating the reactor. When the first catalyst composition is used in a loop reactor under slurry polymerization conditions, the particle size of the treated solid oxide component is about 10 to about 1000 microns, preferably about 25 to about 500 microns, most preferably 50 to 200 microns Range is preferred for best control during polymerization.
    [83] One novelty of the present invention is that butenes can be formed during ethylene polymerization. Subsequent copolymerization of butene with an organometallic compound yields an ethylene-butene copolymer even though no butene is fed to the reactor. Thus, the polymers produced from the catalyst compositions of the present invention may contain up to about 1 wt% ethyl branching, although no butenes are fed to the reactor.
    [84] In a third aspect of the invention, a method is provided wherein a second catalyst composition is produced in which the first catalyst composition is further contacted with at least one second organometallic compound to produce a bimodal polymer. The second organometallic compound may be represented by the following formula.
    [85] Chemical formula
    [86] (C 5 R 5 ) 2 ZrX 2
    [87] Wherein each R is the same or different and is selected from the group consisting of hydrogen and hydrocarbyl groups having from 1 to about 10 carbon atoms. Hydrocarbyl groups are selected from the group consisting of straight or branched chain alkyl, substituted or unsubstituted aryl, and alkylaryl. X is the same or different and is independently selected from the group consisting of halides, alkyl, alkylaryl having 1 to about 10 carbon atoms, and triflate. Suitable organometallic compounds are, for example, (C 5 H 4 CH 3 ) 2 ZrCl 2 , (C 5 H 4 CH 2 C 6 H 6 ) 2 ZrF 2 , (C 5 H 4 C 4 H 9 ) 2 ZrCl 2 , And (C 5 H 3 CH 3 C 2 H 5 ) 2 ZrBr 2 . Preferably the organometallic compound is (C 5 H 4 C 4 H 9 ) 2 ZrCl 2 . Combinations of these organometallic compounds can also be used.
    [88] The type and amount of active agent in the second catalyst composition is the same as in the first catalyst composition described above. In general, the amount of the first organometallic compound and the second organometallic compound formulated in the second catalyst composition is equal to the amount of the first organometallic compound in the first catalyst composition. The ratio of the first organometallic compound to the second organometallic compound ranges from about 1: 100 to about 100: 1.
    [89] The second organometallic compound may be contacted with other components of this catalyst by any method suitable for the first organometallic compound. For example, it may be mixed with a first organometallic compound in a hydrocarbon solution and pumped separately to the reactor. Alternatively, the second organometallic compound can be fed to the precontact vessel, where all or some of the other components can be contacted before being introduced into the reactor. Alternatively, all of the components can be fed directly to the reactor separately.
    [90] Preferably, the activity of the second catalyst composition is similar to that of the first catalyst composition. Furthermore, aluminoxanes, fluoro-organoboron compounds, organic chromium compounds, and MgCl 2 are not needed to produce the second catalyst composition, thus providing the same advantages as the first catalyst composition described above.
    [91] The second catalyst composition can be used in the polymerization process as described above for the first catalyst composition. When making the bimodal polymer according to this third embodiment, it is preferable to add a comonomer and hydrogen to the polymerization reaction zone. Hydrogen may be used to control the molecular weight and comonomers may be used to control the polymer density.
    [92] (CpTiCl 2) 2Manufacture of O
    [93] Under a nitrogen atmosphere, 600 ml of dry tetrahydrofuran (THF) was added to a flask containing 64.70 g of cyclopentadienyl titanium trichloride obtained from Strem Corporation to produce a mixture. The mixture formed a first solution as the orange solid dissolved in THF. Then, a second solution containing 200 mL of THF and 5.309 g of water was added dropwise over about 15 minutes, during which the first solution was vigorously stirred to produce a third solution. The color of the third solution gradually becomes more red. The third solution was then gently heated to 40 ° C. and left at that temperature for several hours. After standing for 24 hours at room temperature, THF was evaporated in vacuo to yield a tan solid (CpTiCl 2 ) 2 O.
    [94] Preparation of Zinc Chloride-Containing Alumina
    [95] Commercial alumina sold as Ketjen grade B alumina, having a pore volume of about 1.78 cc / g and a surface area of about 350 m 2 / g, was obtained from Akzo Nobel Chemical. 435 mL of deionized water, 34.65 g of zinc chloride, and 2.5 mL of nitric acid solution were made and impregnated into 170.35 g of Ketjen grade B alumina sample to produce zinc-containing alumina. Thus, zinc chloride loading was 20 wt% of alumina. The zinc-containing alumina was then dried under vacuum overnight at 100 ° C. and pushed through an 80 mesh screen. A portion of the zinc-containing alumina was then calcined at 600 ° C. for 3 hours in dry air to convert the zinc species to mixed zinc oxide to produce calcined zinc-containing alumina. The calcined zinc-containing alumina was then activated in a 25 g batch as follows. 25 g of calcined zinc-containing alumina was heated to 600 ° C. under nitrogen, and at 600 ° C. 2.4 ml of carbon tetrachloride was injected into the gas stream from which it was evaporated and flowed to produce chlorided zinc-containing alumina. Performed through a zinc-containing alumina layer. Zinc chloride-containing alumina was then stored under nitrogen atmosphere and later tested for polymerization activity.
    [96] Bench Scale Polymerization
    [97] A bench scale polymerization run was performed in an Autoclave Engineers reactor with 1 gallon stirring. The reactor was prepared by first purging with nitrogen and heating the empty reactor to 120 ° C. After cooling to 40 ° C. or less, it was purged with isobutane vapor and a small amount of organometallic compound, usually 0.001 to 0.01 g, was charged to the reactor under nitrogen as specified. Next, an activator such as a MAO solution was added and the reactor was closed. Next, when used, 1-hexene was injected into the reactor, followed by the addition of 2 liters of isobutane liquid under pressure to produce a reaction mixture. The reactor was subsequently heated to the desired temperature, usually 90 ° C., otherwise to the specified temperature. The reaction mixture was stirred at 700 rpm. In some runs hydrogen was added to the reactor in one of two auxiliary vessels of 55 cc (SV) or 325 cc (LV) during heating. The amount of hydrogen added was measured and this was shown as the pressure in this vessel that dropped as the contents were added to the reactor. The final partial pressure of hydrogen on the reactor itself can be approximated by multiplying the pressure drop measured from this auxiliary vessel by 0.163 (LV) or 0.028 (SV). Ethylene was then added to the reactor and fed at a fixed total pressure of 450 pgis, or maintained as specified. The reactor was kept at the specified temperature for about 60 minutes. Isobutane and ethylene were then removed from the reactor and the reactor was opened. The polymer was usually collected as a dry powder. In some cases, the polymer had to stick to the reactor walls and scrape off for recovery.
    [98] When a halide metal-containing solid oxide component is used as the activator, typically 0.25 g of a halide metal-containing solid oxide component is sealed in a glass tube, toluene solution containing 2 to 20 mg of organometallic compound, 1 A 1 molar heptane solution, usually triethylaluminum, of ml of organic aluminum was added to produce a precontacted catalyst mixture. The precontacted catalyst mixture was then added to the reactor under nitrogen.
    [99] Ethylene was polymerization ethylene obtained from Union Carbide Corp. Ethylene was further purified through a 1/4 inch bead column of Alcoa A201 alumina activated at 250 ° C. in nitrogen. Isobutane was a polymer grade obtained from Phillips Petroleum, Boger, Texas, USA. It was further purified by distillation and passed through a 1/4 inch bead column of Alcoa A201 alumina activated at 250 ° C. in nitrogen. 1-hexene was a polymerization grade obtained from Chevron Chemicals. It was further purified by purging with nitrogen and storing on activated 13X molecular sieve at 250 ° C. Methylaluminoxane (MAO) was obtained from Albemarle Corp. as a 10% solution in toluene. Other organoaluminum compounds were obtained from Akxo Corp. as a 1 molar solution in heptane.
    [100] Polymer test
    [101] As described in ASTM D1895-89, a 100 ml graduated cylinder with a lightly tapped polymer fluff was weighed and the bulk density was measured in lbs / ft.
    [102] The polymer density was measured in g / cc for compression molded samples that were cooled at about 15 ° C. for 1 hour and then conditioned for about 40 hours at room temperature according to ASTM D1505-68 and ASTM D1928, Procedure C.
    [103] In accordance with ASTM D1238, Condition 190/2, the melt index (MI) was measured in polymer g / 10 min at 2,160 g weight at 190 ° C.
    [104] High load melt index (HLMI) was measured at 190 ° C. at 21,600 g weight, according to ASTM D1238, Condition 190 / 2.16.
    [105] Molecular weight and molecular weight distribution were obtained using Waters 150 CV gel permeation chromatography (GPC) with trichlorobenzene (TCB) as solvent, at a flow rate of 1 ml / min at a temperature of 140 ° C. BHT (2,6-di-tert-butyl-4-methylphenol) was used as a stabilizer in TCB at a concentration of 1.0 g / l. An injection volume of 220 ul was used with a nominal polymer concentration of 0.3 g / l (at room temperature). Samples were dissolved in stabilized TCB by intermittent, gentle stirring and heating at 160-170 ° C. for 20 hours. The columns were two Waters HT-6E columns (7.8 x 300 mm). The column was calibrated with a global linear polyethylene standard (Phillips Marlex R polyethylene BHB 5003) with molecular weight determined.
    [106] Branch analysis was achieved via 13 C NMR spectral decoding, which was collected from deuterium trichlorobenzene solution of polymer using GEQE200 NMR spectrometer at 75.5 MHz or Varian 500 NMR spectrometer at 125.7 MHz.
    [107] Example 1-28
    [108] Multiple bench scale polymerization runs were performed with (CpTiCl 2 ) 2 O and with a number of other related titanium-based organometallic compounds for comparison.
    [109] In this run, usually 0.25 g of the aforementioned zinc chloride-containing alumina is reactor with several mg of organometallic compound as shown in the table, and a small amount of organoaluminum compound, usually 1 ml to 0.5 ml of triisobutyl aluminum. Filled in. In some cases, these components are compounded in a glass tube in a short time before adding to the reactor.
    [110] From Table 1, it can be seen that the compound of the invention called A in the table is significantly more active than the other compounds tested. The comparative compounds are very closely related to the compounds of the invention and include cyclopentadienyl titanium dichloride aryloxide, and also precursor materials, cyclopentadienyl titanium trichloride, and even "limited geometry" catalysts from the well known Dow company. Included. However, none of these compounds accessed the activity observed from the compounds of the invention. It should be noted that the compounds of the invention produced extremely high molecular weight polymers, which are desirable for bimodal blending of catalysts.
    [111]
    [112] Code for Table 1
    [113] A is inventive compound (CpTiCl 2 ) 2 O, where Cp = cyclopentadienyl.
    [114] B is cyclopentadienyl titanium trichloride, or CpTiCl 3 .
    [115] C is pentamethylcyclopentadienyl titanium trichloride, or (CH 3 ) CpTiCl 3 .
    [116] D is pentamethylcyclopentadienyl titanium trimethoxide, or (CH 3 ) CpTi (OCH 3 ) 3 .
    [117] E is indenyl titanium trichloride, or IndTiCl 3 .
    [118] F is bis-cyclopentadienyl titanium dichloride, or Cp 2 TiCl 2 .
    [119] G is 1-methylindenyl titanium trichloride, or CH 3 IndTiCl 3 .
    [120] H is 1,2,3-trimethylindenyl titanium trichloride, or (CH 3 ) 3 IndTiCl 3 .
    [121] I is 1-phenylindenyl titanium trichloride, or C 6 H 5 IndTiCl 3 .
    [122] J is cyclopentadienyl titanium dichloride 2,5 di-t-butylphenoxide.
    [123] K is cyclopentadienyl titanium dichloride 2,5 dimethylphenoxide.
    [124] L is pentamethylcyclopentadienyl titanium dichloride 2,5 diisopropylphenoxide.
    [125] M is (t-butyl amido) (tetramethylcyclopentadienyl) dimethylsilane titanium dichloride and is a limited geometry catalyst from Dow Chemical Co.
    [126] N is cyclic tetramer (CpTiClO) 4 .
    [127] O is cyclopentadienyl titanium dichloride (p-ethoxyphenoxide).
    [128] P is cyclopentadienyl titanium dichloride (p-methylphenoxide).
    [129] Zinc chloride-containing alumina activity = g of polyethylene per gram of zinc chloride-containing alumina per hour
    [130] Organometallic compound activity = g of polyethylene per g of organometallic compound per hour
    [131] Example 29-32
    [132] A bench scale polymerization was carried out at 80 ° C. with the organometallic compound A of the invention described above and zinc chloride-containing alumina. In each run, 1 ml of 1 mole triisobutylaluminum was added with various amounts of hexene. The resulting polymer had a HLMI of zero. C-13 NMR branching analysis was performed on the polymer, and the data of Table 2 was observed.
    [133] TABLE 2
    [134] Example numberHexene added (g)Density (g / cc)Ethyl branch (wt%)Butyl Branch (wt%) 29-invention100.93190.121.62 30-invention200.93000.103.18 31-invention300.92800.104.62 32-Compare1000.940101.02
    [135] As expected, butyl branching increased with increasing hexene. However, a noticeable feature is how much branching is incorporated as this small amount of hexene is added. This represents a high degree of incorporation efficiency of the copolymer. NMR detects ethyl branching well, suggesting in-situ butene production. In Comparative Example 32, bis (n-butylcyclopentadienyl) zirconium dichloride, which is well known for its ability to produce high activity and low molecular weight polymers, incorporates a small amount of hexene compared to the inventive compound A.
    [136] Thus, the first organometallic compound and the first catalyst composition of the present invention: 1) exhibit high activity; 2) incorporates hexene well; 3) also produces extremely high molecular weight polymers. This is a unique combination of ideal features for producing bimodal polymers from the combination of organometallic compounds with branching concentrated in the high molecular weight portion of the distribution. The comparative compound in Table 2, bis (n-butylcyclopentadienyl) zirconium dichloride, is ideal for inventing the first catalyst composition because of its high activity, still poor incorporation efficiency, and intrinsic ability to produce low molecular weight polymers. Make it a companion. Together they form an excellent choice for bimodal polymer production.
    [137] Example 33
    [138] 2-mode manufacturing in loop reactor
    [139] Ethylene polymers are prepared in a continuous particulate process (also known as slurry process) by contacting the second catalyst composition with ethylene and hexene comonomers. The medium and temperature are thus chosen such that the copolymer is produced as solid particles and recovered in this form. Ethylene dried over activated alumina was used as monomer. Isobutane, degassed by fractionation and dried over alumina, was used as diluent.
    [140] A total 15.2 cm diameter liquid pipe loop reactor of 23 gallons (87 liters) was used. Liquid isobutane was used as a diluent, and some hydrogen was intermittently added to control the molecular weight of the polymer product. The reactor pressure was about 4 Mpa (about 580 psi). The reactor temperature was set at 180 ° F. The reactor was operated to have a residence time of 1.25 hours. The second catalyst composition was added via a 0.35 cc circulating ball-check feeder. Under static conditions, the isobutane feed rate was about 46 liters per hour, the ethylene feed rate was about 30 lbs / hr, and the 1-hexene feed rate was varied to control the density of the polymer product. The ethylene concentration in the diluent was 14 mol%. The catalyst concentration in the reactor was such that the second catalyst composition content ranged from 0.001 to about 1 wt% based on the weight of the reactor content. The polymer was removed from the reactor at a rate of about 25 lbs per hour and recovered in the flash chamber. Vulcan dryers were used to dry the polymer under nitrogen atmosphere at about 60-80 ° C.
    [141] An organometallic compound, triisobutylaluminum (TIBA), was obtained from Akzo Corp. and added at a concentration of about 1 to 250 ppm of the diluent weight as specified. To prevent static build up in the reactor, a small amount (diluent <5 ppm) of a commercially available antistatic agent (usually sold as Stadis R 450) was added.
    [142] Ethylene was a polymerization grade ethylene obtained from Union Carbide Corp. This ethylene was further purified through a 1/4 inch bead column of Alcoa A201 alumina activated at 250 ° C. in nitrogen. Isobutane was a polymer grade obtained from Phillips Petroleum Co., Boger, Texas, USA. It was further purified by distillation and passed through a 1/4 inch bead column of Alcoa A201 alumina activated at 250 ° C. in nitrogen. 1-hexane was a polymerization grade obtained from Chevron Chemicals. It was further purified by purging with nitrogen and storing on activated 13X molecular sieve at 250 ° C.
    [143] Several bimodal polymers were made in a continuous loop reactor by feeding two organometallic compounds together at the same time. The same zinc chloride-containing alumina as described above was used as the activator with 250 ppm by weight of triisobutyl aluminum. Hexene was pumped into the reactor at a rate of 12.5 lbs per hour. The ratio of hexene to ethylene feed was 0.33. Reactor temperature was 180 ° F. The density of the polymer was maintained at 0.920 g / cc and the bulk density was about 22 lbs / ft 2 . The two organometallic compounds used were the inventive compounds described above, (CpTiCl 2 ) 2 O, which produced high molecular weight copolymers and bis (n-butylcyclopentadienyl) zirconium dichloride (described above in Table 2) It also produces less branched low molecular weight polymers.
    [144] The relative amounts of the two organometallic compounds are varied to produce five different polymers with varying widths in molecular weight distribution. GPC traces of the five polymers are shown in Table 1. As inventive compounds, it should be noted that (CpTiCl 2 ) 2 O was increased in bis (n-butyl-cyclopentadienyl) zirconium dichloride, an amount related to the polymer molecular weight distribution width. The polydispersity (average molecular weight divided by the number average molecular weight) produced by (CpTiCl 2 ) 2 O alone was about 9, and about 2.3 by bis (n-butylcyclopentadienyl) zirconium dichloride alone. However, combining two organometallic compounds yields a polydispersity of 12 to 17, suggesting a wider range of molecular weight distribution.
    [145] Although the present invention has been described in detail for purposes of illustration, it is not intended to be limited thereby, but is intended to cover all changes and modifications within the spirit and scope of the invention.
    权利要求:
    Claims (49)
    [1" claim-type="Currently amended] A method of preparing a first catalyst composition comprising contacting at least one first organometallic compound represented by the following formula with at least one active agent.
    Chemical formula
    R 2 CpM 1 -OM 2 CpR 2
    In the above formula,
    M 1 is titanium, zirconium, or hafnium;
    M 2 is a transition metal, lanthanide, actinide, group IIIB metal, group IVB metal, group VB metal, or group VIB metal;
    Cp is independently cyclopentadienyl, indenyl, fluorenyl, substituted cyclopentadienyl, substituted indenyl, or substituted fluorenyl;
    Substituents on the substituted cyclopentadienyl, substituted indenyl, and substituted fluorenyl of Cp are aliphatic groups, cyclic groups, combinations of aliphatic and cyclic groups, silyl groups, alkyl halide groups, halides, organometallic groups, Phosphorus group, nitrogen group, silicon, phosphorus, boron, germanium, or hydrogen;
    R is independently a halide, aliphatic group, substituted aliphatic group, cyclic group, substituted cyclic group, combination of aliphatic group and cyclic group, combination of substituted aliphatic group and cyclic group, combination of aliphatic group and substituted cyclic group , Combination of substituted aliphatic group and substituted cyclic group, amido group, substituted amido group, phosphido group, substituted phosphido group, alkyl oxide group, substituted alkyl oxide group, aryl oxide group, substituted aryl oxide group, organometallic Groups, or substituted organometallic groups;
    The active agent is a treated solid oxide component in combination with an aluminoxane, a fluoro-organic borate compound, or at least one organoaluminum compound.
    [2" claim-type="Currently amended] The method of claim 1 wherein the first organometallic compound is represented by the formula:
    Chemical formula
    (C 5 R 5 ) TiX 2 -O- (C 5 R 5 ) TiX 2
    In the above formula,
    R is the same or different and is independently hydrogen or a hydrocarbyl group having 1 to about 10 carbon atoms,
    Hydrocarbyl groups are straight or branched alkyl, substituted or unsubstituted aryl, or alkylaryl;
    X is the same or different and independently halide, alkyl, alkylaryl having 1 to about 10 carbon atoms, or triflate.
    [3" claim-type="Currently amended] The compound of claim 2, wherein the first organometallic compound is selected from [(C 5 H 4 CH 3 ) TiCl 2 ] 2 O, [(C 5 H 4 CH 2 C 6 H 5 ) TiF 2 ] 2 O, [(C 5 H 3 CH 3 C 2 H 5 ) TiBr 2 ] O, or [(C 5 H 5 ) TiCl 2 ] 2 O.
    [4" claim-type="Currently amended] 4. The method of claim 3 wherein the first organometallic compound is [(C 5 H 5 ) TiCl 2 ] 2 O.
    [5" claim-type="Currently amended] The method of claim 1 wherein the aluminoxane is prepared from trimethylaluminum or triethylaluminum.
    [6" claim-type="Currently amended] 6. The process of claim 5 wherein the aluminoxane is used in parallel with trialkylaluminum.
    [7" claim-type="Currently amended] The process of claim 1 wherein the molar ratio of aluminum in the aluminoxane to the transition metal in the first organometallic compound ranges from about 1: 1 to about 100,000: 1.
    [8" claim-type="Currently amended] 8. The method of claim 7, wherein the molar ratio of aluminum in the aluminoxane to the transition metal in the first organometallic compound ranges from 5: 1 to about 15,000: 1.
    [9" claim-type="Currently amended] The fluoro-organic borate compound according to claim 1, wherein the fluoro-organic borate compound is N, N-dimethylanilinium tetrakis (pentafluorophenyl) borate, triphenylcarbenium tetrakis (pentafluorophenyl) borate, lithium tetrakis (pentafluoro Rophenyl) borate, tris (pentafluorophenyl) boron, N, N-dimethylanilinium tetrakis [3,5-bis (trifluoromethyl) phenyl] borate, triphenylcarbenium tetrakis [3,5- Bis (trifluoromethyl) phenyl] borate, or a mixture of two or more of these fluoro-organic borate compounds.
    [10" claim-type="Currently amended] The method of claim 1 wherein the amount of fluoro-organic borate compound is in the range of about 0.5 to about 10 moles of fluoro-organic borate compound per mole of first organic metal compound.
    [11" claim-type="Currently amended] The method of claim 10 wherein the amount of fluoro-organic borate compound is in the range of 0.8 to 5 moles of fluoro-organic borate compound per mole of first organometallic compound.
    [12" claim-type="Currently amended] 2. The solid oxide component of claim 1, wherein the treated solid oxide component is a halide solid oxide component or a halide metal-containing solid oxide component;
    The halide solid oxide component comprises a halogen and a solid oxide component;
    The halide metal-containing solid oxide component comprises a halogen, a metal, and a solid oxide component;
    The solid oxide component is alumina, silica-alumina, aluminophosphate, aluminoborate, or a mixture of two or more of these solid oxide components;
    The metal is zinc, nickel, vanadium, copper, silver, gallium, tungsten, molybdenum, or tin;
    The halogen is chlorine or bromine.
    [13" claim-type="Currently amended] The method of claim 11, wherein the organoaluminum compound is triisobutylaluminum, diethylaluminum hydride, dipentylaluminum ethoxide, dipropylaluminum phenoxide, or a mixture of two or more of these organoaluminum compounds.
    [14" claim-type="Currently amended] The method of claim 13, wherein the organoaluminum compound is triisobutylaluminum or triethylaluminum.
    [15" claim-type="Currently amended] The method of claim 1 wherein the solid oxide component has a pore volume of greater than about 0.8 cc / g.
    [16" claim-type="Currently amended] The method of claim 1 wherein the solid oxide component has a surface area in the range of about 200 to about 800 m 2 / g.
    [17" claim-type="Currently amended] The method of claim 1 wherein the solid oxide component is alumina.
    [18" claim-type="Currently amended] 13. The process of claim 12 wherein the halogen is chlorine.
    [19" claim-type="Currently amended] The method of claim 12, wherein the metal is zinc.
    [20" claim-type="Currently amended] 13. The process of claim 12, wherein contacting the bis (cyclopentadienyl titanium dichloride) oxide, zinc chloride-containing alumina, and an organoaluminum compound which is triisobutyl aluminum or triethylaluminum to produce a first catalyst composition Including;
    And the amount of zinc present ranges from about 0.5 to about 5 millimoles of zinc per gram of alumina.
    [21" claim-type="Currently amended] The method of claim 1, further comprising contacting the second organometallic compound to produce a second catalyst composition;
    The second organometallic compound is represented by the formula (C 5 R 5 ) 2 ZrX 2 ;
    R is the same or different and is independently hydrogen or a hydrocarbyl group having 1 to about 10 carbon atoms;
    The hydrocarbyl group is straight or branched alkyl, substituted or unsubstituted aryl, or alkylaryl;
    X is the same or different and independently a halide, alkyl, alkylaryl having 1 to about 10 carbon atoms, or triflate.
    [22" claim-type="Currently amended] 22. The method of claim 21, wherein the second organometallic compound is bis (n-butylcyclopentadienyl) zirconium dichloride.
    [23" claim-type="Currently amended] 23. The method of claim 22 including contacting bis (cyclopentadienyl titanium dichloride) oxide, bis (n-butylcyclopentadienyl) zirconium dichloride, zinc chloride-containing alumina, and triisobutyl aluminum. How to.
    [24" claim-type="Currently amended] 22. The activity of claim 21, wherein the resulting catalyst composition uses isobutane as a diluent, has a polymerization temperature of 90 [deg.] C., and an activity greater than 100 grams of polymer per gram of active agent per hour under slurry polymerization conditions with an ethylene pressure of 3.89 MPa (550 psig). How to have.
    [25" claim-type="Currently amended] The activity of claim 24 wherein the resulting catalyst composition uses isobutane as a diluent, has a polymerization temperature of 90 ° C., and an activity greater than 2000 grams of polymer per gram of active agent per hour under slurry polymerization conditions with an ethylene pressure of 3.89 MPa (550 psig). How to have.
    [26" claim-type="Currently amended] The method of claim 21, wherein the weight ratio of organoaluminum compound to treated solid oxide component in the resulting catalyst composition ranges from about 3: 1 to about 1: 100.
    [27" claim-type="Currently amended] 27. The process of claim 26, wherein the weight ratio of organoaluminum compound to treated solid oxide component in the catalyst composition ranges from 1: 1 to 1:50.
    [28" claim-type="Currently amended] The process of claim 1 wherein the weight ratio of solid oxide component to organometallic compound treated in the catalyst composition ranges from about 1000: 1 to about 10: 1.
    [29" claim-type="Currently amended] 29. The method of claim 28, wherein the weight ratio of solid oxide component to organometallic compound treated in the catalyst composition ranges from 250: 1 to 20: 1.
    [30" claim-type="Currently amended] The method of claim 21, wherein the weight ratio of the solid oxide component treated to the first and second organometallic compounds in the catalyst composition ranges from about 1000: 1 to about 10: 1.
    [31" claim-type="Currently amended] 31. The method of claim 30, wherein the weight ratio of the solid oxide component treated to the first and second organometallic compounds in the catalyst composition ranges from 250: 1 to 20: 1.
    [32" claim-type="Currently amended] The process of claim 1 wherein the organometallic compound, the treated solid oxide component, and the catalyst composition after contacting the organoaluminum compound consist essentially of the organometallic compound and the treated solid oxide component.
    [33" claim-type="Currently amended] The method of claim 1 wherein the organometallic compound, the treated solid oxide component, and the catalyst composition after contacting the organoaluminum compound consist essentially of the organometallic compound, the treated solid oxide component, and the organoaluminum compound.
    [34" claim-type="Currently amended] The catalyst composition of claim 1 wherein the catalyst composition has an activity greater than 1000 grams of polymer per gram of active agent per hour under slurry polymerization conditions using isobutane as the diluent, polymerization temperature of 90 ° C., and ethylene pressure of 3.89 MPa (550 psig). Way.
    [35" claim-type="Currently amended] 35. The catalyst composition of claim 34, wherein the catalyst composition has an activity greater than 2000 grams of polymer per gram of active agent per hour under slurry polymerization conditions using isobutane as the diluent, a polymerization temperature of 90 DEG C, and an ethylene pressure of 3.89 MPa (550 psig). Way.
    [36" claim-type="Currently amended] The process of claim 1 wherein the weight ratio of organoaluminum compound to treated solid oxide component in the catalyst composition ranges from about 3: 1 to about 1: 100.
    [37" claim-type="Currently amended] 37. The method of claim 36, wherein the weight ratio of organoaluminum compound to treated solid oxide component in the catalyst composition ranges from 1: 1 to 1:50.
    [38" claim-type="Currently amended] A method of polymerization comprising contacting at least one monomer with the catalyst composition of claim 21 under polymerization conditions for polymer production.
    [39" claim-type="Currently amended] The method of claim 38, wherein the polymerization conditions comprise slurry polymerization conditions.
    [40" claim-type="Currently amended] The method of claim 38, wherein the contacting is performed in a loop reaction zone.
    [41" claim-type="Currently amended] The method of claim 38, wherein the contacting is carried out in the presence of a diluent comprising mostly isobutane.
    [42" claim-type="Currently amended] The method of claim 38, wherein the at least one monomer is ethylene.
    [43" claim-type="Currently amended] The method of claim 38, wherein the at least one monomer comprises ethylene and aliphatic 1-olefins having 3 to 20 carbon atoms per molecule.
    [44" claim-type="Currently amended] A method of polymerization comprising the step of contacting at least one monomer with the catalyst composition under the polymerization conditions for producing the bimodal polymer when produced in the process according to claim 1.
    [45" claim-type="Currently amended] 45. The method of claim 44, wherein the polymerization conditions comprise slurry polymerization conditions.
    [46" claim-type="Currently amended] 45. The method of claim 44, wherein the contacting is performed in a loop reaction zone.
    [47" claim-type="Currently amended] 45. The method of claim 44, wherein the contacting is carried out in the presence of a diluent comprising mostly isobutane.
    [48" claim-type="Currently amended] 45. The method of claim 44, wherein at least one monomer is ethylene.
    [49" claim-type="Currently amended] 45. The method of claim 44, wherein the at least one monomer comprises ethylene and aliphatic 1-olefins having 3 to 20 carbon atoms per molecule.
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    同族专利:
    公开号 | 公开日
    JP2003531957A|2003-10-28|
    BR0110413A|2003-12-30|
    US6936667B2|2005-08-30|
    BRPI0110413B1|2015-09-01|
    IL152501D0|2003-05-29|
    CA2407602C|2008-04-08|
    PL360980A1|2004-09-20|
    AU5742301A|2001-11-12|
    EP1278756B1|2014-06-11|
    EA005850B1|2005-06-30|
    CA2407602A1|2001-11-08|
    MXPA02010631A|2003-03-10|
    EP1278756A4|2005-02-23|
    US6528448B1|2003-03-04|
    US20040006186A1|2004-01-08|
    EP1278756A1|2003-01-29|
    WO2001083498A1|2001-11-08|
    HK1050201A1|2015-03-27|
    JP4778658B2|2011-09-21|
    EA200201160A1|2003-06-26|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    法律状态:
    2000-04-28|Priority to US09/561,306
    2000-04-28|Priority to US09/561,306
    2001-04-27|Application filed by 휘립프스피트로오리암캄파니
    2001-04-27|Priority to PCT/US2001/013830
    2002-12-16|Publication of KR20020093992A
    优先权:
    申请号 | 申请日 | 专利标题
    US09/561,306|2000-04-28|
    US09/561,306|US6528448B1|2000-04-28|2000-04-28|Polymerization catalyst compositions and processes to produce polymers and bimodal polymers|
    PCT/US2001/013830|WO2001083498A1|2000-04-28|2001-04-27|Polymerization catalyst compositions and processes to produce polymers and bimodal polymers|
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