发明名称 |
PROCESS FOR PRODUCING STYRENIC POLYMER AND CATALYST THEREFOR |
摘要 |
A catalyst comprising a transition metal compound, such as pentamethylcyclopentadienyltitaniumtrimethyl, and a coordination compound formed between a quaternary ammonium salt and an anion comprising two or more groups bonded to a metal atom, such as O-cyano-N-methylpyridinium tetra(pentafluorophenyl)borate, and another catalyst comprising the above catalyst and an alkylating agent, such as triisobutylaluminum, suitable for the production of a highly syndiotactic styrenic polymer. A process for producing a highly syndiotactic styrenic polymer by polymerizing a styrenic monomer in the presence of the above catalyst. It is thereby possible to produce a highly syndiotactic styrenic polymer efficiently without the necessity for using expensive aluminoxane in a large amount. |
申请公布号 |
EP0543022(A4) |
申请公布日期 |
1994.11.23 |
申请号 |
EP19920911400 |
申请日期 |
1992.06.09 |
申请人 |
IDEMITSU KOSAN COMPANY LIMITED |
发明人 |
NAGANUMA, SHOJI;WATANABE, MASAMI;TOMOTSU, NORIO |
分类号 |
C08F4/16;C08F4/42;C08F4/60;C08F4/619;C08F4/6192;C08F4/642;C08F4/659;C08F4/6592;C08F4/76;C08F4/80;C08F10/00;C08F12/00;C08F12/04;C08F12/08 |
主分类号 |
C08F4/16 |
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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