| 发明名称 |
Process for preparing polyolefins |
| 摘要 |
Olefins are polymerized in the presence of a catalyst which comprises the combination of: [I] a solid substance obtained by the reaction of at least the following two components: (i) a magnesium compound represented by the general formula R1m(OR2)nMgX2-m-n wherein R1 and R2 are each a hydrocarbon radical having 1 to 24 carbon atoms, X is a halogen atom, m is 0</=m</=2 and n is 0</=n</=2, provided 0</=m+n</=2, and (ii) a titanium compound and/or a vanadium compound; [II] a silicon compound represented by general formula R1mSi(OR2)nX4-m-n wherein R1 and R2 are each hydrocarbon radical having 1 to 24 carbon atoms, X is a halogen atom, m is 0</=m<4 and n is 0<n</=4, provided 0 m+n 4; [III] an organometallic compound, where said catalyst comprises a product obtained by pre-reacting said silicon compound (II) and said organometallic compound (III).
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| 申请公布号 |
US4451688(A) |
申请公布日期 |
1984.05.29 |
| 申请号 |
US19820413829 |
申请日期 |
1982.09.01 |
| 申请人 |
NIPPON OIL COMPANY, LIMITED |
发明人 |
KURODA, NOBUYUKI;NAKAMURA, TORU;SHIKATANI, YUTAKA;MATSUURA, KAZUO;MIYOSHI, MITUJI |
| 分类号 |
C08F10/00;(IPC1-7):C07C3/21;C07C3/10 |
主分类号 |
C08F10/00 |
| 代理机构 |
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