Fluoropolymer composition
    9.
    发明授权
    Fluoropolymer composition 失效
    含氟聚合物组成

    公开(公告)号:US4214060A

    公开(公告)日:1980-07-22

    申请号:US746002

    申请日:1976-11-30

    CPC分类号: C08F259/08 C08K5/14

    摘要: A fluoropolymer composition useful in the manufacture of cured fluoropolymer articles can be made by mixing a specified copolymer with an organic peroxide such as a dialkyl peroxide, and preferably also adding a divalent metal oxide and/or hydroxide and a suitable coagent such as triallyl isocyanurate. This composition contains a copolymer obtained by copolymerizing a small amount (e.g. about 0.5-3 mole %) of a bromine-containing olefin with certain fluorine-containing compounds.

    摘要翻译: 可用于制造固化含氟聚合物制品的含氟聚合物组合物可以通过将特定共聚物与有机过氧化物如二烷基过氧化物混合,优选还加入二价金属氧化物和/或氢氧化物以及合适的助剂例如异氰脲酸三烯丙酯来制备。 该组合物含有通过将少量(例如约0.5-3摩尔%)的含溴烯烃与某些含氟化合物共聚而获得的共聚物。

    Emulsion polymerization of vinyl bromide with vinyl comonomer
    10.
    发明授权
    Emulsion polymerization of vinyl bromide with vinyl comonomer 失效
    乙烯基溴与乙烯基共聚单体的乳液聚合

    公开(公告)号:US3932336A

    公开(公告)日:1976-01-13

    申请号:US417887

    申请日:1973-11-21

    IPC分类号: C08F214/16 C08L27/10

    CPC分类号: C08F214/16

    摘要: A process for producing substantially colorless poly(vinyl bromide) homopolymer and copolymer latexes at high rates and in high yields which includes adding an aqueous solution of a reducing agent to an emulsion of vinyl bromide containing a water-soluble peroxide, or adding an aqueous solution of peroxide to an emulsion of vinyl bromide containing a water-soluble reducing agent. The latexes can be dried without significant color development and the poly(vinyl bromide) homopolymers and copolymers obtained therefrom have improved color stability.

    摘要翻译: 一种以高速率和高产率生产基本上无色的聚(溴乙烯)均聚物和共聚物胶乳的方法,包括向含有水溶性过氧化物的溴乙烯的乳液中加入还原剂的水溶液,或加入水溶液 的过氧化物加入到含有水溶性还原剂的溴乙烯的乳液中。 可以干燥胶乳而没有显着的显色,由此获得的聚(溴乙烯)均聚物和共聚物具有改善的颜色稳定性。