Process for making fluoropolymers
    5.
    发明授权
    Process for making fluoropolymers 失效
    制备含氟聚合物的方法

    公开(公告)号:US5639837A

    公开(公告)日:1997-06-17

    申请号:US658676

    申请日:1996-06-04

    IPC分类号: C08F2/00 C08F14/18

    CPC分类号: C08F14/18

    摘要: Disclosed herein is a process in which fluorine containing olefins are polymerized using an initiation system which is a combination of a fluoroaliphatic sulfinate or sulfinic acid and chlorate, bromate or hypochlorite ions. The resulting polymer contains fewer deleterious end groups and is more stable and/or easier to process. The polymers produced are useful as thermoplastics and elastomers.

    摘要翻译: 本文公开的是使用作为氟代脂族亚磺酸盐或亚磺酸与氯酸盐,溴酸盐或次氯酸盐离子的组合的引发体系聚合含氟烯烃的方法。 所得聚合物含有较少有害的末端基团并且更稳定和/或更容易加工。 所生产的聚合物可用作热塑性塑料和弹性体。

    Fluoromonomer polymerization
    7.
    发明授权
    Fluoromonomer polymerization 失效
    含氟单体聚合

    公开(公告)号:US06583249B2

    公开(公告)日:2003-06-24

    申请号:US10121037

    申请日:2002-04-11

    IPC分类号: C08F11418

    CPC分类号: C08F14/18 C08F2/38

    摘要: Chain transfer agents that are chlorine-free and liquid under polymerization conditions, useful for fluoromonomer polymerization, have the following structure: R1—O—R2 They are superior to common chain transfer agents such as chloroform in being safer and environmentally benign. They are also superior to gaseous chain transfer agents such as ethane because they do not enter the fluoromonomer gas recycle streams and so do not complicate the analysis and purification of those streams.

    摘要翻译: 在聚合条件下无氯和液体的可用于含氟单体聚合的链转移剂具有以下结构:它们比常规的链转移剂如氯仿更安全和环境友好。 它们还优于气态链转移剂如乙烷,因为它们不进入含氟单体气体循环流,因此不会使这些流的分析和纯化复杂化。

    Fluoromonomer polymerization
    8.
    发明授权
    Fluoromonomer polymerization 失效
    含氟单体聚合

    公开(公告)号:US06399729B1

    公开(公告)日:2002-06-04

    申请号:US09450106

    申请日:1999-11-29

    IPC分类号: C08F11418

    CPC分类号: C08F14/18 C08F2/38

    摘要: Chain transfer agents that are chlorine-free and liquid under polymerization conditions, useful for fluoromonomer polymerization, have the following formula: R1—O—R2. They are superior to common chain transfer agents such as chloroform in being safer and environmentally benign. They are also superior to gaseous chain transfer agents such as ethane because they do not enter the fluoromonomer gas recycle streams and so do not complicate the analysis and purification of those streams.

    摘要翻译: 在聚合条件下无氯和液态的可用于含氟单体聚合的链转移剂具有以下结构式:它们比常规的链转移剂如氯仿在更安全和环境友好方面优越。 它们还优于气态链转移剂如乙烷,因为它们不进入含氟单体气体循环流,因此不会使这些流的分析和纯化复杂化。