Polymerization of ethylenically unsaturated monomer with dialkyl
pyrocarbonate and hydrogen peroxide
    2.
    发明授权
    Polymerization of ethylenically unsaturated monomer with dialkyl pyrocarbonate and hydrogen peroxide 失效
    烯属不饱和单体与焦碳酸二烷基酯和过氧化氢的聚合

    公开(公告)号:US3984386A

    公开(公告)日:1976-10-05

    申请号:US582498

    申请日:1975-05-30

    申请人: Franklin Strain

    发明人: Franklin Strain

    CPC分类号: C08F4/38 Y10S260/28

    摘要: Ethylenically unsaturated material susceptible to free radical polymerization, e.g., vinyl chloride monomer, is polymerized, e.g., in an aqueous medium, with an initiator system comprising, in combination, dialkyl pyrocarbonate, hydrogen peroxide, and alkaline reagent, e.g., sodium bicarbonate. The initiator system is added to the polymerization medium in amounts sufficient to polymerize the ethylenically unsaturated material.

    摘要翻译: 易于自由基聚合的烯键式不饱和物质,例如氯乙烯单体,例如在含水介质中聚合,引发剂体系组合包含焦碳酸二烷基酯,过氧化氢和碱性试剂如碳酸氢钠。 将引发剂体系以足以聚合烯属不饱和材料的量加入到聚合介质中。

    Di(2-phenoxyethyl) peroxydicarbonate
    3.
    发明授权
    Di(2-phenoxyethyl) peroxydicarbonate 失效
    DI(2-甲氧基乙基)过氧化二碳酸酯

    公开(公告)号:US3857828A

    公开(公告)日:1974-12-31

    申请号:US40912973

    申请日:1973-10-24

    申请人: PENNWALT CORP

    发明人: SANCHEZ J

    摘要: Di-(2-phenoxyethyl) peroxydicarbonate and improved processes employing same as initiators for the polymerization of ethylenically unsaturated monomers (such as vinyl chloride) and as curing catalysts for curing unsaturated polyester resin compositions.

    摘要翻译: 二(2-苯氧基乙基)过氧化二碳酸酯和改进的方法,使用它们作为烯属不饱和单体(如氯乙烯)的聚合引发剂,以及用于固化不饱和聚酯树脂组合物的固化催化剂。

    Acrylonitrile polymerization
    4.
    发明授权
    Acrylonitrile polymerization 失效
    丙烯腈聚合

    公开(公告)号:US3687918A

    公开(公告)日:1972-08-29

    申请号:US3687918D

    申请日:1969-06-16

    申请人: CELANESE CORP

    IPC分类号: C08F20/44 C08F3/76 C08F15/38

    CPC分类号: C08F20/44 Y10S260/28

    摘要: A method of polymerizing acrylonitrile polymers at elevated temperatures and superatmospheric pressure conditions in a novel organic, preferably aqueous-organic, reaction medium in which the monomeric reactants and the polymerized acrylonitrile are soluble under the polymerization conditions. The polymerization conditions may correspond to or are conveniently changed to polymer shaping conditions utilizing the same solvent-reaction medium, thus eliminating polymer recovery, polymer washing, polymer dissolution and the like, process steps. The organic polymerization medium is a monomer and polymer solvating amount of acetonitrile, generally in an amount of 60 to 100 percent by weight of the solvent solution with the residual amount being preferably water. The process is particularly suitable for continuous reaction and polymer shaping wherein an effluent solution of polymer and organic or aqueous-organic reaction medium is continuously withdrawn from the reaction system, maintained under solubilizing conditions of heat and superatmospheric pressure, with suitable adjustment of solvent concentrations as desired to provide homogeneous polymer suitable for extrusion into a shaped article.

    摘要翻译: 在聚合条件下单体反应物和聚合丙烯腈可溶的新型有机,优选含水有机反应介质中,在高温和超大气压条件下聚合丙烯腈聚合物的方法。 聚合条件可以对应于或者可以方便地改变为使用相同的溶剂 - 反应介质的聚合物成型条件,从而消除聚合物回收,聚合物洗涤,聚合物溶解等步骤。 有机聚合介质是单体和聚合物溶剂化量的乙腈,通常为溶剂溶液的60至100重量%,残留量优选为水。 该方法特别适用于连续反应和聚合物成型,其中将聚合物和有机或含水 - 有机反应介质的流出液连续地从反应体系中取出,保持在加热和超大气压力的溶解条件下,并适当地调节溶剂浓度如 期望提供适于挤出成型制品的均匀聚合物。

    Catalyst and method of polyester polymerization
    5.
    发明授权
    Catalyst and method of polyester polymerization 失效
    催化剂和聚酯聚合方法

    公开(公告)号:US3668139A

    公开(公告)日:1972-06-06

    申请号:US3668139D

    申请日:1970-05-28

    申请人: GRACE W R & CO

    摘要: A catalyst, containing a ketone peroxide, e.g., methyl ethyl ketone peroxide, and an organic non-ketonic diperoxide, e.g., 2,5-dimethyl-2,5-bis(2-ethyl hexanoyl peroxy)hexane, is used to cure polyester resins containing over 900 p.p.m. of an inhibitor. A small amount of sodium methoxide can be used as part of the catalyst. More specifically, polyester resins containing 900 to 40,000 p.p.m. of inhibitors can be cured within 10 minutes to 24 hours with the novel catalyst.

    摘要翻译: 使用含有酮过氧化物的催化剂,例如甲基乙基酮过氧化物和有机非酮性二过氧化物,例如2,5-二甲基-2,5-双(2-乙基己酰基过氧)己烷,用于固化聚酯 含有超过900 ppm的树脂 的抑制剂。 可以使用少量的甲醇钠作为催化剂的一部分。 更具体地说,含有900〜40,000p.p.m 的抑制剂可以在新催化剂的10分钟至24小时内固化。