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1. 发明授权

US5455319A Process for polymerizing vinyl chloride polymers with iodinated chain transfer agents 失效
标题翻译：用碘化链转移剂聚合氯乙烯聚合物的方法
公开(公告)号：US5455319A
公开(公告)日：1995-10-03
申请号：US269464
申请日：1994-06-30
申请人： Philip I. Bak , Gregory P. Bidinger , Ross J. Cozens , Paul R. Klich , Lance A. Mayer
发明人： Philip I. Bak , Gregory P. Bidinger , Ross J. Cozens , Paul R. Klich , Lance A. Mayer
IPC分类号： C07C17/087 , C08F2/38 , C08F14/06 , C08F14/18 , C08F2/20
CPC分类号： C08F14/06 , C07C17/087 , C08F14/18 , C08F2438/01 , Y02P20/52
摘要： The present invention to a method of synthesizing poly(vinyl halide) by means of a free radical polymerization which mimics a "living" radical polymerization in the presence of an iodine containing chain transfer agent containing at least one iodine atom bonded to a primary carbon atom and having the formula:R--CH.sub.2 I (I)R--CHX I (II),R--CH(X)--CH.sub.2 I (III),R--CH(X)--CHX I (IV), orR--CH(X)--CH.sub.2 --CHX I (V),wherein X is fluorine, chlorine, bromine, or iodine, R is hydrogen, C.sub.1, C.sub.2, C.sub.3, C.sub.4, C.sub.5 alkyl, any of which are linear or branched, cyanoalkyl, cyclohexyl, methyl cyclohexyl, phenyl, benzyl, and halogenated or oxygenated derivatives thereof.In accordance with the invention there is further provided a method of synthesizing 1-halo-1-iodoethane by reacting hydrogen iodide with vinyl chloride or vinyl fluoride in the presence of an iodine generating catalyst under certain specified conditions. The resulting product of the reaction is a high yield, high purity 1-chloro-1-iodoethane or 1-fluoro-1-iodoethane. The poly(vinyl halide) resin is obtainable under conventional temperatures of polymerization and the chain transfer agents included herein perform consistently over repeated runs, hence useful for commercial manufacturing. The resin obtained has reduced molecular weight and polydispersity, good thermal stability, and enhanced mechanical properties, compared to poly(vinyl halide) conventionally formed by free radical methods at higher temperatures and/or with the use of conventional chain transfer agents for vinyl halide polymer.
摘要翻译：本发明涉及一种通过自由基聚合合成聚（乙烯基卤化物）的方法，该方法在含有至少一个与原子碳原子键合的碘原子的含碘链转移剂存在下模拟“活性”自由基聚合并且具有下式：R-CH 2 I（I）R-CHX I（II），R-CH（X）-CH 2 I（III），R-CH（X）-CHX I（IV）或R-CH （X）-CH 2 -CHX I（V），其中X是氟，氯，溴或碘，R是氢，C1，C2，C3，C4，C5烷基，其中任何一个是直链或支链的，氰基烷基，，甲基环己基，苯基，苄基及其卤化或氧化衍生物。根据本发明，还提供了在特定条件下，在碘发生催化剂存在下，使碘化氢与氯乙烯或氟乙烯反应合成1-卤代-1-碘乙烷的方法。所得反应产物是高产率，高纯度的1-氯-1-碘乙烷或1-氟-1-碘乙烷。聚（乙烯基卤化物）树脂可以在常规聚合温度下获得，并且本文所列的链转移剂一贯地重复进行，因此可用于商业制造。与通常在较高温度下通过自由基方法形成的聚（卤乙烯）和/或使用常规的乙烯基卤化物聚合物链转移剂相比，所获得的树脂具有降低的分子量和多分散性，良好的热稳定性和增强的机械性能。

2. 发明授权

US5244995A Vinyl halide aqueous polymerization dispersant system 失效
标题翻译：乙烯基卤水溶液聚合分散剂体系
公开(公告)号：US5244995A
公开(公告)日：1993-09-14
申请号：US913116
申请日：1992-07-14
申请人： Douglas E. Skillicorn , Keith L. Gardner , Lance A. Mayer , Scott Perry
发明人： Douglas E. Skillicorn , Keith L. Gardner , Lance A. Mayer , Scott Perry
IPC分类号： C08F2/20
CPC分类号： C08F2/20
摘要： A process for preparing a particulate vinyl polymer resin and vinyl polymer resin derived therefrom wherein, comprising polymerization in the presence of a dispersant or graft dispersant having no ionic side groups, optionally containing terminal functional groups, said dispersant is derived from repeating units of .alpha.,.beta.-unsaturated ester(s) of acrylic and/or methacrylic acid and having a molecular weight average of from about 500 to about 50,000.
摘要翻译：一种制备由其衍生的颗粒状乙烯基聚合物树脂和乙烯基聚合物树脂的方法，其中包括在分散剂或不含离子侧基的接枝分散剂存在下聚合，任选地含有末端官能团，所述分散剂衍生自α，丙烯酸和/或甲基丙烯酸的β-不饱和酯，分子量平均为约500至约50,000。

3. 发明授权

US5155189A Vinyl halide aqueous polymerization dispersant system 失效
标题翻译： VINYL HALIDE水性聚合分散体系
公开(公告)号：US5155189A
公开(公告)日：1992-10-13
申请号：US604848
申请日：1990-10-26
申请人： Douglas E. Skillicorn , Keith L. Gardner , Lance A. Mayer , Scott Perry
发明人： Douglas E. Skillicorn , Keith L. Gardner , Lance A. Mayer , Scott Perry
IPC分类号： C08F2/02 , C08F2/18 , C08F2/20 , C08F2/24 , C08F2/32 , C08F2/38
CPC分类号： C08F2/20
摘要： A process for preparing a particulate vinyl polymer resin and vinyl polymer resin derived therefrom wherein, comprising polymerization in the presence of a dispersant or graft dispersant having no ionic side groups, optionally containing terminal functional groups, said dispersant is derived from repeating units of .alpha.,.beta.-unsaturated ester(s) of acrylic and/or methacrylic acid and having a molecular weight average of from about 500 to about 50,000.

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