发明名称 |
Process for purification of styrenic polymer. |
摘要 |
<p>There is disclosed a process for purifying a styrene polymer which comprises subjecting a highly syntiotactic styrene polymer which is produced by the use of a catalyst composition of (A) an aluminoxane or a specific coordination complex compound and (B) a transition metal compound to deashing treatment at the glass transition temperature of the styrene polymer or higher. The process is capable of efficiently deashing the styrene polymer produced by polymerizing a styrene monomer at a high concentration with a high conversion efficiency. Accordingly, the process greatly improves the productivity of highly pure styrene polymer.</p> |
申请公布号 |
EP0497207(A2) |
申请公布日期 |
1992.08.05 |
申请号 |
EP19920101042 |
申请日期 |
1992.01.23 |
申请人 |
IDEMITSU KOSAN COMPANY LIMITED |
发明人 |
TESHIMA, HIDEO;KURAMOTO, MASAHIKO |
分类号 |
C08F4/64;C08F4/42;C08F4/60;C08F4/642;C08F4/659;C08F4/6592;C08F4/80;C08F6/00;C08F6/02;C08F6/06;C08F6/08;C08F12/00;C08F12/04;C08F12/08 |
主分类号 |
C08F4/64 |
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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