Stabilized slurries of isoolefin polymers
    3.
    发明授权
    Stabilized slurries of isoolefin polymers 失效
    稳定的异烯烃聚合物浆料

    公开(公告)号:US4252710A

    公开(公告)日:1981-02-24

    申请号:US63253

    申请日:1979-08-02

    CPC分类号: C08F10/10 C08F210/10

    摘要: Polymerization slurries of elastomeric isoolefin homopolymers and copolymers, such as butyl rubber, in diluents such as methyl chloride, are effectively stabilized against agglomeration of polymer particles through addition of minor proportions of (i) a preformed copolymer stabilizer having both a lyophobic or lyophilic portion, or (ii) an in situ formed stabilizer from a functional lyophilic stabilizer precursor capable of copolymerizing or otherwise chemically bonding with the polymer product. Agglomeration of polymer products is effectively prevented, yielding a number of significant processing advantages. The process is especially adaptable to the production of isobutylene-isoprene butyl rubber.

    摘要翻译: 弹性体异烯烃均聚物和共聚物(例如丁基橡胶)在稀释剂如氯甲烷中的聚合浆料通过加入少量比例(i)预先形成的具有疏液或亲液部分的共聚物稳定剂,有效地稳定了聚合物颗粒的聚集, 或(ii)能够与聚合物产物共聚或以其他方式化学键合的功能性亲液稳定剂前体的原位形成的稳定剂。 有效防止了聚合物产品的聚集,产生了许多显着的加工优点。 该方法特别适用于异丁烯 - 异戊二烯丁基橡胶的生产。

    Functional group containing cyclic diolefin butyl rubbers
    4.
    发明授权
    Functional group containing cyclic diolefin butyl rubbers 失效
    含有环状二烯基丁基橡胶的官能团

    公开(公告)号:US4228254A

    公开(公告)日:1980-10-14

    申请号:US931327

    申请日:1978-08-07

    IPC分类号: C08F8/00 C08F8/46

    CPC分类号: C08F8/00

    摘要: Isobutylene-based elastomers containing 3-15 mol percent enchained cyclic diolefin such as cyclopentadiene, and other comonomers such as isoprene, piperylene and butadiene to allow for chemical modification with anhydride, carboxy, hydroxy, etc. to produce a one package through cure system.

    摘要翻译: 含有3-15摩尔%的环状二烯烃如环戊二烯和其它共聚单体如异戊二烯,戊间二烯和丁二烯的异丁烯基弹性体,以允许用酸酐,羧基,羟基等进行化学修饰以通过固化体系产生一个包装。

    Stabilized slurries of isoolefin polymers
    8.
    发明授权
    Stabilized slurries of isoolefin polymers 失效
    稳定的异烯烃聚合物浆料

    公开(公告)号:US4474924A

    公开(公告)日:1984-10-02

    申请号:US461678

    申请日:1983-01-27

    摘要: Polymerization slurries of elastomeric isoolefin homopolymers and copolymers, such as butyl rubber, in diluents such as methyl chloride are effectively stabilized against agglomeration of polymer particles through addition of minor proportions of an hydrogenated preformed copolymer stabilizer having both a lyophobic and a lyophilic portion. The chemical and structural nature of the lyophobic and lyophilic portions which comprise the copolymer stabilizer are significant in determining the extent and method of hydrogenation for production of the most effective stabilizer. Agglomeration of polymer products is effectively prevented, yielding a number of significant processing advantages. The process is especially adaptable to the production of isobutylene-isoprene butyl rubber.

    摘要翻译: 弹性体异烯烃均聚物和共聚物如丁基橡胶在稀释剂如氯甲烷中的聚合浆料通过加入少量比例的具有疏液性和亲液性部分的氢化预成型共聚物稳定剂,有效地稳定了聚合物颗粒的聚集。 包含共聚物稳定剂的疏液和亲液部分的化学和结构性质在确定生产最有效稳定剂的氢化程度和方法方面是显着的。 有效防止了聚合物产品的聚集,产生了许多显着的加工优点。 该方法特别适用于异丁烯 - 异戊二烯丁基橡胶的生产。

    Stabilized slurries of isoolefin polymers
    9.
    发明授权
    Stabilized slurries of isoolefin polymers 失效
    稳定的异烯烃聚合物浆料

    公开(公告)号:US4358560A

    公开(公告)日:1982-11-09

    申请号:US236719

    申请日:1981-02-23

    摘要: Polymerization slurries of elastomeric isoolefin homopolymers and copolymers, such as butyl rubber, in diluents such as methyl chloride are effectively stabilized against agglomeration of polymer particles through addition of minor proportions of (i) a preformed copolymer stabilizer having both a lyophobic or lyophilic portion, or (ii) an in situ formed stabilizer from a functional lyophilic stabilizer precursor capable of copolymerizing or otherwise chemically bonding with the polymer product. Agglomeration of polymer products is effectively prevented, yielding a number of significant processing advantages. The process is especially adaptable to the production of isobutylene-isoprene butyl rubber.

    摘要翻译: 弹性体异烯烃均聚物和共聚物如丁基橡胶在稀释剂如氯甲烷中的聚合浆料通过加入少量比例的(i)具有疏液或亲液部分的预制共聚物稳定剂或聚 (ii)能够与聚合物产物共聚或以其它方式化学键合的功能性亲液稳定剂前体的原位形成的稳定剂。 有效防止了聚合物产品的聚集,产生了许多显着的加工优点。 该方法特别适用于异丁烯 - 异戊二烯丁基橡胶的生产。