Thermoplastic vulcanizates from isobutylene rubber and either EPDM or a
conjugated diene rubber
    4.
    发明授权
    Thermoplastic vulcanizates from isobutylene rubber and either EPDM or a conjugated diene rubber 失效
    来自异丁烯橡胶和EPDM或共轭二烯橡胶的热塑性硫化橡胶

    公开(公告)号:US5621045A

    公开(公告)日:1997-04-15

    申请号:US556673

    申请日:1995-11-13

    CPC分类号: C08L7/00 C08L23/10 C08L9/02

    摘要: Thermoplastic vulcanizates from semicrystalline polyolefins and blends of crosslinked rubbers are disclosed. The blends are a mixture of at least two rubbers. One rubber is a copolymer predominantly of C.sub.4 to C.sub.7 isomonoolefins (e.g. isobutylene), along with optional monomers of conjugated dienes and/or p-alkylstyrene. This copolymer is optionally halogenated. The second rubber is ethylene/propylene rubber, natural rubber or a rubber polymerized predominantly from a conjugated diene. Such rubbers include polybutadiene, nitrile rubber, butadiene-styrene copolymers or combinations thereof.

    摘要翻译: 公开了来自半结晶聚烯烃的热塑性硫化橡胶和交联橡胶的共混物。 混合物是至少两种橡胶的混合物。 一种橡胶是主要由C4至C7异单烯烃(例如异丁烯)共聚的共聚物,以及共轭二烯和/或对 - 烷基苯乙烯的任选单体。 该共聚物任选卤化。 第二橡胶是乙烯/丙烯橡胶,天然橡胶或主要由共轭二烯聚合的橡胶。 这种橡胶包括聚丁二烯,丁腈橡胶,丁二烯 - 苯乙烯共聚物或其组合。

    Use of a silane grafted polyolefin in EPDM/polyolefin thermoplastic vulcanizates to improve compression set
    5.
    发明授权
    Use of a silane grafted polyolefin in EPDM/polyolefin thermoplastic vulcanizates to improve compression set 有权
    在EPDM /聚烯烃热塑性硫化胶中使用硅烷接枝聚烯烃,以改善压缩永久变形

    公开(公告)号:US06476132B1

    公开(公告)日:2002-11-05

    申请号:US09360014

    申请日:1999-07-23

    IPC分类号: C06L8300

    摘要: A thermoplastic vulcanizate (TPV) from a blend of a first thermoplastic polyolefin, a second thermoplastic olefin and a rubber is described. The rubber is crosslinked with a hydrosilylation crosslinking agent. The second polyolefin includes at least one OR group pendant to a Si atom chemically attached via one or more intermediate molecules to said second polyolefin. R can be hydrogen or an alkyl of 1 to 8 carbon atoms. The OR groups can react with the hydrosilylation catalyst to reduce the compression set of the TPV.

    摘要翻译: 描述了来自第一热塑性聚烯烃,第二热塑性烯烃和橡胶的共混物的热塑性硫化橡胶(TPV)。 橡胶与氢化硅烷化交联剂交联。 第二聚烯烃包括通过一个或多个中间分子与所述第二聚烯烃化学连接的Si原子的至少一个OR基团。 R可以是氢或1至8个碳原子的烷基。 OR基团可以与氢化硅烷化催化剂反应以降低TPV的压缩永久变形。

    Co-cured rubber-thermoplastic elastomer compositions
    6.
    发明授权
    Co-cured rubber-thermoplastic elastomer compositions 失效
    共固化的橡胶 - 热塑性弹性体组合物

    公开(公告)号:US5777033A

    公开(公告)日:1998-07-07

    申请号:US686798

    申请日:1996-07-26

    摘要: A thermoplastic elastomer composition has a plastic phase or matrix of an engineering thermoplastic such as a polyamide and a crosslinked phase of cured acrylic rubbers. The rubbers contain at least two functionalized acrylic rubbers wherein the functional group such as a carboxyl, an epoxy, or a hydroxyl can be the same or different. The curing agents generally react via covalent bonding with the reactive functional groups of the rubbers. The composition can be dynamically vulcanized and when one of the rubbers is a terpolymer of ethylene-alkyl acrylate-unsaturated carboxylic acid, the composition has a single low temperature brittle point.

    摘要翻译: 热塑性弹性体组合物具有工程热塑性塑料的塑料相或基体,例如聚酰胺和固化的丙烯酸橡胶的交联相。 橡胶含有至少两种官能化丙烯酸橡胶,其中官能团如羧基,环氧基或羟基可以相同或不同。 固化剂通常通过共价键与橡胶的反应性官能团反应。 该组合物可以动态硫化,当橡胶之一是乙烯 - 丙烯酸烷基酯 - 不饱和羧酸的三元共聚物时,该组合物具有单一的低温脆性点。

    Modification of thermolastic vulcanizates with a thermoplastic random copolymer of ethylene
    9.
    发明授权
    Modification of thermolastic vulcanizates with a thermoplastic random copolymer of ethylene 有权
    用乙烯热塑性无规共聚物改性热弹性硫化胶

    公开(公告)号:US06399710B1

    公开(公告)日:2002-06-04

    申请号:US09554796

    申请日:2000-07-03

    IPC分类号: C08L2302

    摘要: Random thermoplastic ethylene copolymers can be used to increase the elongation to break and toughness of thermoplastic vulcanizates. Polypropylene is a preferred thermoplastic phase. The rubber can be olefinic rubbers. Random thermoplastic ethylene copolymers are different from Ziegler-Natta ethylene copolymers as the compositional heterogeneity of the copolymer is greater with Ziegler-Natta copolymers. This difference results in substantial differences in properties (elongation to break and toughness) between thermoplastic vulcanizates modified with random thermoplastic ethylene and those modified with Ziegler-Natta ethylene copolymers. An increase in elongation to break results in greater extensibility in the articles made from a thermoplastic vulcanizate.

    摘要翻译: 随机热塑性乙烯共聚物可用于增加热塑性硫化橡胶的断裂伸长率和韧性。 聚丙烯是优选的热塑性相。 橡胶可以是烯烃橡胶。 无规热塑性乙烯共聚物不同于齐格勒 - 纳塔乙烯共聚物,因为齐格勒 - 纳塔共聚物,共聚物的组成异质性更大。 该差异导致用随机热塑性乙烯改性的热塑性硫化橡胶和用齐格勒 - 纳塔乙烯共聚物改性的热塑性硫化橡胶之间的性能(断裂伸长率和韧性)的实质差异。 增加断裂伸长率导致由热塑性硫化橡胶制成的制品更大的延展性。