• 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:
    A one-step process for the emulsion polymerization of vinyl chloride using a water-soluble initiator and an aqueous emulsifier system of (1) a C12-C18 straight chain alkyl or alkenyl phosphate surfactant and (2) a C12-C20 straight chain alkyl or alkenyl alcohol and/or a straight chain saturated hydrocarbon having a carbon content of greater than 18 is disclosed. One suitable example of a straight chain phosphate surfactant is sodium lauryl phosphate. Suitable alcohols include stearyl alcohol, cetyl alcohol and eicosanol. A suitable hydrocarbon is eicosane. The resulting homo- and copolymer latices can be used in plastisols and organosols.
    公开号:SU831080A3
    申请号:SU782585051
    申请日:1978-03-03
    公开日:1981-05-15
    发明作者:Джун-Шен Ю Артур；Фредерик Андерсон Дональд
    申请人:Стауффер Кемикал Компани (Фирма)；
    IPC主号:
    专利说明:

    (54) METHOD OF OBTAINING POLYVINYL CHLORIDE
    one
     This invention relates to a process for the manufacture of polyvinyl chloride and can be used in the chemical industry.
    A known method of producing polyvinyl chloride by water emulsion polymerization of vinyl chloride in the presence of a water-soluble radical initiator and fatty acid soaps, alkyl sulfates or alkyl sulfonates 1 as emulsifiers.
    The closest in technical essence to the present invention is a method of producing polyvinyl chloride by aqueous emulsion polymerization of vinyl chloride in the presence of a water-soluble radical initiator and sodium lauryl phosphate as an emulsifier 2.
    The disadvantage of this method is its multi-stage, as in the case of the use of this emulsifier, the stage of formation of the initial seed particles and one or several stages of growing the seed particles are required before the desired product is obtained.
    The purpose of the invention is to simplify the process technology.
    This goal is achieved by the fact that in the process of producing polyvinyl chloride by aqueous emulsion polymerization of vinyl chloride in the presence of a water-soluble radical initiator and sodium lauryl phosphate as an emulsifier, the process is carried out in the presence of a stearyl syrite as an additional emulsifier with its weight ratio with an εE equal to 0.5: 1: 2 - 2 - 2: 2: 2: 2: 2: 2 - 2 - 2 - 2 - 2. and the total amount of the mixture of emulsifiers 0.5-1.2 wt.% to the monomer
    In addition, a mixture of emulsifiers before use is homogenized in an aqueous solution of alkali with heat.
    The process is carried out in one stage. As water-soluble initiators. Ammonium sulphate, sodium perborate, potassium persulphate, sodium persulphate and potassium percarbonate can be used, as well as redox-si-steM7J of potassium persulphate - ascorbic acid or potassium persulphate sodium metabisulphate. The amount of initiator or redox system used is 0.05–1% (preferably 0.075–0.1 wt.% To the monomer. During polymerization, it is reasonable to have a suitable buffer, for example, borax, in the reaction mass to maintain the reaction medium at a pH of 5–8 ( preferably 6-7.5), since this achieves a polydisperse distribution of the polymer particles.
    The polymerization process is carried out by heating the reaction mixture to 45 - for 3 5 hours. I
    Example 1. Preparation of a mixed emulsifier.
    / Lauric acid phosphate is used (3 g of such phosphate requires 4.5 g of 10% NaOH to establish a pH of 8.0) in order to obtain the sodium lauryl phosphate salt by mixing the following ingredients and heating them to 70 s, g:
    Deionized water 2520 Sodium hydroxide (97%) 23.3 Sodium lauryl phosphate 150 From the resulting solution, a series of stearyl alcohol (CC) sodium ori-1-phosphate (NLF) mixed with emulsifiers was prepared by introducing a solution in a ratio to NLF for use in following example.
    Example 2 A mixed sodium-lauryl phosphate (stearyl alcohol (NLF-SS) emulsifier in single-cycle polymerization of vinyl chloride is used. The reaction is carried out in bottles for 4 hours. Table 5 shows the reagents used and the results obtained.
    权利要求:
    Claims (2)
    [1]
    The proposed method, due to the single-stage process, makes it possible to simplify the process technology. 783 Claim 1. The method of obtaining polyvinyl chloride by aqueous emulsion polymerization of vinyl chloride in the presence of a water-soluble radical initiator and sodium lauryl phosphate as an emulsifier, characterized in that, in order to simplify the process, the latter is carried out in the presence of stearyl alcohol as an additional emulsifier in its weight ratio equal to 0.5: 1 - 2: 1 and the total 10808 amount of the mixture of emulsifiers 0.5 1, 2% by weight of the monomer. 2. A method according to claim I, about t and h and h and so that the mixture of emulsifiers before use is homogenized in an aqueous solution of alkali when heated. Sources of information taken into account in the examination 1. Zilberman E.N. Preparation and properties of polyvinyl chloride. M., Himi, 1968, p. 109.
    [2]
    2. Patent of Great Britain No. 1142425, cl. C 3 P, published. 1969 (prototype).
    类似技术:
    公开号 | 公开日 | 专利标题
    SU831080A3|1981-05-15|Method of producing polyvinyl chloride
    US3663657A|1972-05-16|Emulsion-suspension graft copolymerization process
    CN105440219B|2018-04-27|PVC paste resin and preparation method thereof
    US4001163A|1977-01-04|Styrene-butadiene copolymer latices containing carboxyl groups
    US4093581A|1978-06-06|Emulsion polymerization of vinyl chloride using prehomogenized mixed emulsifier system
    US2473548A|1949-06-21|Polymerization of vinylidene compounds in aqueous emulsion in the presence of ionizable silver compounds and ammonia
    US3523111A|1970-08-04|Emulsion polymerization of vinyl chloride with redox initiator system components and emulsifier prepared before monomer addition
    JPH1087731A|1998-04-07|Latex of vinyl chloride-based polymer having two particle distributions and having high fine particle content, its production and utilization thereof
    US2388225A|1945-10-30|Process for polymerizing olefinic materials
    DE2533043A1|1976-02-19|METHOD OF EMULSION POLYMERIZATION OF AN OLEFINIAN MONOMER
    US2934529A|1960-04-26|Process for polymerizing vinyl chloride in an aqueous emulsion
    CA1169988A|1984-06-26|Aqueous dispersions of plastics in which the averagediameter of the dispersion particles is in the rangefrom about 50 to 500 nm, and a process for theirpreparation
    EP0007641A3|1980-03-05|Process for producing homopolymers or copolymers of vinyl or vinylidene halides by emulsion polymerization
    CA1210185A|1986-08-19|Making low fusion bimodal vinyl dispersion resinesas powder
    JPH0618827B2|1994-03-16|Process for preparing pastable polymers of vinyl chloride or mixtures of vinyl chloride and its copolymerizable monomers
    US2775567A|1956-12-25|Method of preparing dyeable copolymers
    SU676173A3|1979-07-25|Method of obtaining polyvinyl chloride
    US3740368A|1973-06-19|Polymerisation process
    KR970065568A|1997-10-13|A method for producing a vinyl chloride resin having excellent foaming properties
    US4081588A|1978-03-28|Vinyl chloride polymerization process
    US3531454A|1970-09-29|Process for producing vinyl chloride polymer resins
    KR810001468B1|1981-10-23|Emulsion poly merization of polyvinyl chloride using mixedemulsifier system ina single step
    JP2002506482A|2002-02-26|Polyvinyl chloride, method for producing the same, and composition containing the same
    ES480155A1|1980-04-01|Process for preparing acrylonitrile copolymer dispersions.
    JPH0696614B2|1994-11-30|Process for producing pasty vinyl chloride polymers or copolymers of vinyl chloride with up to 30% by weight of other monomers
    同族专利:
    公开号 | 公开日
    JPS53109590A|1978-09-25|
    SE7802117L|1978-09-04|
    IT7848237D0|1978-03-01|
    CH635113A5|1983-03-15|
    NL7802331A|1978-09-05|
    US4071675A|1978-01-31|
    IL53736D0|1978-04-30|
    DK38978A|1978-09-04|
    DE2801575A1|1978-09-07|
    BE864462A|1978-09-04|
    GB1577279A|1980-10-22|
    FR2382462A1|1978-09-29|
    IL53736A|1981-02-27|
    NO780705L|1978-09-05|
    CA1128696A|1982-07-27|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US2843576A|1953-12-03|1958-07-15|Ethyl Corp|Production of vinyl compounds|
    GB975381A|1962-08-30|1964-11-18|British Geon Ltd|Process for the polymerisation of vinyl chloride|
    GB978875A|1963-03-29|Ici Ltd|
    US3383346A|1965-04-07|1968-05-14|Goodyear Tire & Rubber|Particle size control in seed technique emulsion polymerization using hydroxyl group-containing modifier|
    GB1142425A|1967-05-04|1969-02-05|Stauffer Chemical Co|Alkyl phosphate surfactants as primary emulsifiers in emulsion polymerization|
    US3642740A|1968-09-23|1972-02-15|Diamond Shamrock Corp|Process for preparing homo- and copolymers of vinyl chloride in aqueous emulsion|
    US3654248A|1969-07-31|1972-04-04|Japanese Geon Co Ltd|Process for the preparation of vinyl chloride polymers for paste|
    US3755225A|1971-08-17|1973-08-28|Diamond Shamrock Corp|Process for preparing homo- and copolymers of vinyl chloride in aqueous emulsion with post addition of a water-soluble ethylene oxide-ethylene glycol adduct|SE405255C|1975-07-01|1985-08-22|Norsk Hydro As|PROCEDURE FOR PREPARING VINYL CHLORIDE POLYMERS THROUGH EMULSION POLYMERIZATION IN THE PRESENT OF ALIFATIC ALCOHOL CONTAINING 14-24 COLATOMES|
    US4150210A|1978-06-19|1979-04-17|Stauffer Chemical Company|Emulsion polymerization of vinyl chloride polymers using mixed emulsifier system|
    US4186259A|1978-07-31|1980-01-29|The B. F. Goodrich Company|Process for producing homopolymers or copolymers of vinyl or vinylidene halides by emulsion polymerization|
    WO1980000967A1|1978-10-30|1980-05-15|Goodrich Co B F|Use of an electrolyte in the emulsion polymerization process for producing vinyl dispersion resins|
    US4371677A|1981-09-14|1983-02-01|The B.F. Goodrich Company|Process for making dispersion copolymers through monomer metering|
    DE3242088A1|1982-11-13|1984-05-17|Chemische Werke Hüls AG, 4370 Marl|METHOD FOR PRODUCING PASTABLE POLYMERS OF VINYL CHLORIDE|
    DE3421354A1|1984-06-08|1985-12-12|Bayer Ag, 5090 Leverkusen|METHOD FOR PRODUCING HIGH MOLECULAR THERMOPLASTIC RESINS|
    EP0435444A1|1989-11-27|1991-07-03|Mobil Oil Corporation|Branched surfactants and cutting oil formulations, using these surfactants, which resist microbial degradation|
    DE19744845A1|1997-10-10|1999-04-15|Vinnolit Kunststoff Gmbh|Production of polyvinyl chloride useful for making plastisol by batch emulsion polymerization|
    KR101940026B1|2018-02-07|2019-01-21|주식회사 네이쳐앤솔루션|Method for preparing polymer for concrete modification and concrete composition containing polymer produced by the method|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    US05/774,188|US4071675A|1977-03-03|1977-03-03|Emulsion polymerization of vinyl chloride using mixed emulsifier system in a single step in the absence of seed formation|
    [返回顶部]