| 发明名称 |
Process for producing propylene block copolymer. |
| 摘要 |
<p>Block copolymers of propylene with ethylene is produced by two-step polymerization comprising polymerization of propylene in a first step and subsequent polymerization of propylene with ethylene in a second step. The catalyst and the polymerization conditions or particulars are specified, and the characteristics, among others, is use of n-butyllithium at the second step.</p> |
| 申请公布号 |
EP0368677(A2) |
申请公布日期 |
1990.05.16 |
| 申请号 |
EP19890311683 |
申请日期 |
1989.11.10 |
| 申请人 |
MITSUBISHI PETROCHEMICAL CO., LTD. |
发明人 |
MATSUURA, MITUYUKI MITSUBISHI PETROCHEM. CO., LTD.;SUGANO, TOSHIHIKO MITSUBISHI PETROCHEM. CO., LTD.;NAKAMURA, KAZUO MITSUBISHI PETROCHEM. CO., LTD. |
| 分类号 |
C08F2/00;C08F4/60;C08F4/658;C08F210/06;C08F297/08 |
主分类号 |
C08F2/00 |
| 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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