• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    1462835 Chlorinating ethylene polymers STAMICARBON BV 28 Aug 1974 [28 Aug 1973] 37683/74 Heading C3P Ethylene homopolymers or copolymers containing at least 50 mol. per cent ethylene units are chlorinated in powdered form, at least the initial part of the process up to at least a 15% degree of chlorination being effected in the presence of 10-100% of water based by weight on the polymer. Preferably at least part of the chlorination is conducted at a temperature above the crystalline melting point of the polymer, whereby a statistical or hybridical chlorinated polymer is obtained. The chlorination may be activated by actinic light or a radical initiator, e.g. azobisisobutyronitrile, and a wetting agent and/or electrolyte may be present. In examples, various polyethylenes are chlorinated.
    公开号:SU791250A3
    申请号:SU742060701
    申请日:1974-08-27
    公开日:1980-12-23
    发明作者:Адольф Альберт Шен Левхардт
    申请人:Стамикарбон Бф (Фирма)；
    IPC主号:
    专利说明:

    one
    The invention relates to the chlorination of polyolefins, in particular to the method of chlorinating high density polyethylene.
    A known method for the chlorination of 5 high-density polyethylene to a chlorine content of 15–20 wt.%, Followed by dechlorination to a chlorine content in the final product of 3545% at 85–130 ° C and a pressure of 1–10 atm 10 in the presence of an initiator, the process being carried out in carbon tetrachloride l.
    The disadvantage of this method is that the process duration is 3-5 hours.
    The purpose of the invention is to intensify the process.
    This goal is achieved by the fact that in the method of chlorination of polyethylene 20 of high density to a chlorine content of 15–20 wt.%, Followed by dechlorination at 85–130 ° C and 110 atm in the presence of an inium-chlorine chlorine to a chlorine content of 25 to 15–20 wt.% Wire t in the presence of water taken in an amount of 10-100% by weight of polyethylene, and the chlorination is carried out to a chlorine content in the final product of 30-51.5 wt.%. thirty
    When carrying out the first stage of chlorination of polyethylene in the presence of water, taken in an amount, it should be taken into account that the reduction in the duration of the process is achieved only if the degree of suspension of polyethylene in water is determined by the equation
    weight.h. polyethylene
    X 100
    weight.h. water + weight.h. polyethylene
    equal to at least 50%.
    Example 1. In a 1 liter glass reactor equipped with a stirrer, a thermometer, a return cooling tube with a gas extraction tube, and a chlorine gas supply tube, 250 g of water and 250 g of finely divided low-density polyethylene are fed, having the following characteristics: melting index 0.3 according to ASTM-D 1238, density 0.958, crystallinity (determined by differential calorimetry) 68%, particle size less than 500 microns. Nitrogen is passed through the reactor for 45 minutes to remove air.
    权利要求:
    Claims (1)
    [1]
    Claim
    The method of chlorination of high density polyethylene to a chlorine content of 15-20 wt.% Followed by chlorination at 85-130 ° С and 1-10 atm in the presence of an initiator, characterized in that, in order to intensify the process, chlorination to a chlorine content of 15- 20 wt.% Is carried out in the presence of water taken in an amount of 10-100% by weight of polyethylene, and chlorination is carried out to a chlorine content in the final product of 30-51.5 wt.%.
    类似技术:
    公开号 | 公开日 | 专利标题
    SU791250A3|1980-12-23|Method of chlorinating high density polyethylene
    US3454544A|1969-07-08|Process for the chlorination of polyolefins
    US3917577A|1975-11-04|Continuous production of ethylene homopolymers
    US3029231A|1962-04-10|Process for polymerizing olefins
    US4197398A|1980-04-08|Process for neutralizing and deashing polypropylene
    US5639822A|1997-06-17|Process for the production of high-flow propylene/ethylene copolymers
    US3291863A|1966-12-13|Thermoplastic mixtures of vinyl chloride polymers with chlorinated polyolefins of high molecular weight and process for preparing same
    DE2117654C2|1983-07-21|Copolymers, processes for their production and their use
    US2763636A|1956-09-18|Method of controlling molecular weight of polyacrylonitrile produced in aqueous salt solutions
    GB2035343A|1980-06-18|Production of polypropylenes
    US3057831A|1962-10-09|Suspension polymerization of vinyl chloride and product thereof
    DE2222640A1|1972-11-16|Process for the manufacture of chlorinated polymeric materials
    US3757001A|1973-09-04|Method for suspension polymerization of vinyl chloride
    US6699947B1|2004-03-02|Method for producing Phillips catalysts for polymerizing olefins with better productivity rates in the particle-form process
    US3767634A|1973-10-23|Copolymerization of chlorotrifluoroethylene and ethylene using a redox catalyst
    US3856766A|1974-12-24|Process for the manufacture of a light colored thermostable chlorinated polyolefin
    US3110709A|1963-11-12|Chlorinated polyethylene
    US4678847A|1987-07-07|Process for preparing a terpolymer of tetrafluoroethylene, ethylene and a third monomer
    US3033838A|1962-05-08|Modified halogenated polymeric materials
    US4452928A|1984-06-05|Additive-containing polyolefin beads and process for their preparation
    CA1222095A|1987-05-19|PROCESS FOR PRODUCING POLYETHYLENE AND AN ETHYLENE-.alpha.-OLEFIN COPOLYMER
    US3479312A|1969-11-18|Continuous solution-polymerization of acrylonitrile
    US4038230A|1977-07-26|Aqueous dispersion of particulate spheroidal polytetrafluoroethylene
    US3577401A|1971-05-04|Polymerization of vinyl chloride using an in-situ initiator and a basic calcium compound as a buffer
    EP0103975B1|1986-11-26|Process for the suspension polymerization of tetrafluoroethylene
    同族专利:
    公开号 | 公开日
    CA1026047A|1978-02-07|
    NO143749B|1980-12-29|
    SE7410820L|1975-03-03|
    GB1462835A|1977-01-26|
    NO743076L|1975-03-24|
    DK143232C|1981-11-30|
    NL7311780A|1975-03-04|
    IL45564D0|1974-11-29|
    FR2257610A1|1975-08-08|
    NL159678B|1979-03-15|
    IT1019138B|1977-11-10|
    FR2257610B1|1979-06-15|
    DK457774A|1975-04-28|
    JPS5051190A|1975-05-07|
    JPS5228476B2|1977-07-27|
    DK143232B|1981-07-27|
    NO143749C|1981-04-08|
    IN142397B|1977-07-02|
    ES429593A1|1976-09-01|
    US3935181A|1976-01-27|
    AT333029B|1976-10-25|
    BE819263A|1975-02-28|
    SE419448B|1981-08-03|
    ATA695074A|1976-02-15|
    IL45564A|1977-06-30|
    DE2441197A1|1975-03-06|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE4237148A1|1992-11-04|1994-05-05|Bitterfeld Wolfen Chemie|Thermally stable chlorinated polymers - prepd. by soln. chlorination of polymer.|US3454544A|1963-05-06|1969-07-08|Dow Chemical Co|Process for the chlorination of polyolefins|
    US3563974A|1964-03-24|1971-02-16|Dow Chemical Co|Linear polyethylene chlorination|
    US3467640A|1965-02-15|1969-09-16|Hoechst Ag|Process for the manufacture of chlorinated polyolefins|
    GB1299710A|1970-11-03|1972-12-13|Osaka Soda Co Ltd|Process for the preparation of chlorinated ethylene polymers and compositions thereof|USRE29350E|1973-08-28|1977-08-09|Stamicarbon, B.V.|Process for chlorinating ethylene polymers|
    JPS6213237Y2|1978-02-01|1987-04-06|
    US4377459A|1980-08-14|1983-03-22|The B. F. Goodrich Company|Process for chlorination of poly with liquid chlorine, and chlorinated poly composition|
    DE3105404A1|1981-02-14|1982-09-02|Hoechst Ag, 6000 Frankfurt|METHOD FOR PRODUCING A FINE-GRAINED NON-AGGLOMERATING CHLORINE POLYETHYLENE|
    JPS6256236B2|1981-09-09|1987-11-25|Toyo Soda Mfg Co Ltd|
    US4405760A|1981-12-28|1983-09-20|E. I. Du Pont De Nemours & Company|Chlorination and crosslinking of selected polymers with Cl2 O or HOCl|
    JPH0367525B2|1985-03-13|1991-10-23|Nippon Sekyu Kk|
    CH663958A5|1985-03-14|1988-01-29|Dow Chemical Europ|METHOD FOR COATING PLASTIC OBJECTS.|
    JPH0696609B2|1985-05-08|1994-11-30|鐘淵化学工業株式会社|Improved polyolefin resin particles and method for producing the same|
    CN1016429B|1986-11-18|1992-04-29|昭和电工株式会社|Mfg. process|
    JP2725483B2|1991-07-08|1998-03-11|ダイソー株式会社|Production method of chlorinated polyolefin|
    DE4203439B4|1992-02-06|2006-04-13|Showa Denko K.K.|Process for the preparation of chlorinated polyolefins|
    CN102260361B|2011-06-03|2013-05-22|杭州新元化工技术开发有限公司|Preparation method of chlorinated polyethylene|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    NL7311780.A|NL159678B|1973-08-28|1973-08-28|PROCESS FOR CHLORING ETHENE POLYMERS.|
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