发明名称 |
MULTI-COMPONENT ETHYLENE COPOLYMERS, PROCESS FOR THEIR PREPARATION, AND VULCANIZATE THEREOF |
摘要 |
Disclosed is a multiplex ethylene coplymer comprising (a) 50 to 94.8 mole % of units derived from ethylene, which are represented by the following formula (I): -CH2-CH2-(I) (b) 5 to 45 mole % of units derived from a monomer selected from alkyl acrylates, alkyl methacrylates, vinyl carboxylates and isopropenyl carboxylates, which are represented by the following formula (II): <IMAGE> (II) wherein R1 stands for a hydrogen atom or a methyl group, and X is <IMAGE> in which R2 and R3 stand for an alkyl group having 1 to 10 carbon atoms), and (c) 0.2 to 5 mole % of units derived from a monomer having a radical-polymerizable ethylenic double bond and at least one carbon-to-carbon double bond which is different from a double bond of an aromatic nucleus. This ethylene copolymer can be easily cured, and the cured copolymer is a rubber having excellent oil resistance and heat resistance. This multiplex ethylene copolymer can be obtained by copolymerizing a monomer forming the units (a) with a monomer forming the units (b) and (c') a monomer having a radical-polymerizable ethylenic double bond and an acid anhydride group, a carboxyl group and/or an epoxy group, and modifying the obtained copolymer with a low-molecular-weight modifier selected from unsaturated amines and unsaturated alcohols having at least one carbon-to-carbon double bond different from a double bond of an aromatic nucleus (when a radical-polymerizable monomer having an epoxy group is used, the low-molecular-weight modifier may be an unsaturated carboxylic acid having at least one carbon-to-carbon double bond different from a double bond of an aromatic nucleus). |
申请公布号 |
EP0181408(B1) |
申请公布日期 |
1990.10.24 |
申请号 |
EP19850902637 |
申请日期 |
1985.05.21 |
申请人 |
SHOWA DENKO KABUSHIKI KAISHA |
发明人 |
MOTEKI, YOSHIHIRO;IWASHITA, TOSHIYUKI;FUNADA, HITOSHI;WATANABE, NAOTOSHI |
分类号 |
C08F8/00;C08F8/14;C08F8/32;C08F210/02 |
主分类号 |
C08F8/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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