发明名称 |
Olefin polymerization catalyst, component thereof and process for polymerizing olefins with the catalyst, the film and injection-molded article from the obtained polyolefin. |
摘要 |
<p>An olefin polymerization catalyst component subjected to successive preliminary polymerization treatment using each of a straight chain alpha-olefin having 2 to 5 carbon atoms and 3-methyl-1-butene; an olefin polymerization catalyst using the olefin polymerization catalyst component; a process for polymerizing olefin(s) which comprises polymerizing or copolymerizing olefin(s) in the presence of the olefin polymerization catalyst; and a film and an injection-molded article of polypropylene which is prepared by the process are also provided.</p> |
申请公布号 |
EP0360497(A2) |
申请公布日期 |
1990.03.28 |
申请号 |
EP19890309351 |
申请日期 |
1989.09.14 |
申请人 |
MITSUI PETROCHEMICAL INDUSTRIES, LTD. |
发明人 |
KIOKA, MAMORU C/O MITSUI PETROCHEMICAL IND. LTD.;NAKANO, MASAO C/O MITSUI PETROCHEMICAL IND. LTD.;DOI, KENJI C/O MITSUI PETROCHEMICAL IND. LTD.;TOYOTA, AKINORI C/O MITSUI PETROCHEMICAL IND. LTD. |
分类号 |
C08F4/60;C08F4/64;C08F4/654;C08F4/658;C08F10/00;C08J5/18;C08L23/14 |
主分类号 |
C08F4/60 |
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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