发明名称 |
Olefin copolymers and films and sheets |
摘要 |
Provided is a novel olefin copolymer comprising [A] a cyclic olefin, [B] an aromatic vinyl compound and [C] an aliphatic alpha-olefin having from 2 to 20 carbon atoms. (1) the component [A] therein accounts for from 0.1 to 30 mol %, the component [B] for from 0.1 to 49.9 mol %, and the total of the components [A] and [B] for from 0.2 to 50 mol %; and (2) the copolymer has a glass transition temperature Tg of lower than 60° C. Having a suitable modulus of elasticity, the copolymer can be a substitute for soft polyvinyl chloride as a soft resin, and it has good elastic recovery and transparency.
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申请公布号 |
US6696527(B1) |
申请公布日期 |
2004.02.24 |
申请号 |
US20010857191 |
申请日期 |
2001.06.20 |
申请人 |
IDEMITSU PETROCHEMICAL CO. LTD. |
发明人 |
YOKOTA KIYOHIKO;TANI NORIYUKI;ISHIHARA NOBUHIDE;MATSUMOTO JUNICHI |
分类号 |
C08F4/62;C08F4/659;C08F4/6592;C08F4/70;C08F210/00;C08F210/02;C08J5/18;(IPC1-7):C08L45/00;C08F212/06 |
主分类号 |
C08F4/62 |
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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