发明名称 |
PROCESS FOR THE (CO)POLYMERIZATION OF OLEFINS |
摘要 |
Multistage process for the polymerization of one or more olefins of the formula CH2=CHR, in which R is hydrogen or an alkyl, cycloalkyl or aryl group having from 1 to 10 carbon atoms, comprising: (A) a first stage of polymerization, in which a first olefin polymer is prepared in the presence of titanium catalyst or vanadium catalyst; (B) a treatment stage in which the catalyst used previously is deactivated and in which a metallocene compound is supported on the olefin polymer produced in stage (A); and (C) a second stage of polymerization in which one or more olefins are polymerized in the presence of the product obtained from stage (B).
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申请公布号 |
WO9611218(A1) |
申请公布日期 |
1996.04.18 |
申请号 |
WO1995EP03896 |
申请日期 |
1995.10.02 |
申请人 |
MONTELL TECHNOLOGY COMPANY BV |
发明人 |
COLLINA, GIANNI;DALL'OCCO, TIZIANO;GALIMBERTI, MAURIZIO;ALBIZZATI, ENRICO;NORISTI, LUCIANO |
分类号 |
C08F4/658;C08F2/42;C08F2/48;C08F4/642;C08F4/654;C08F4/659;C08F4/6592;C08F10/00;C08F10/06;C08F110/06;C08F297/08;(IPC1-7):C08F297/08 |
主分类号 |
C08F4/658 |
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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