发明名称 |
Process for polymerizing alpha-olefins |
摘要 |
A process for polymerizing an alpha-olefin using either a catalyst formed by contacting a highly active solid titanium catalyst component, an organo-metallic compound of a metal of Group 1 to 3 of the periodic table, an organic halogen compound or a transition metal compound, and an organosilicon compound or a sterically hindered amine in an inert medium in the absence of an alpha olefin, or a catalyst prepared by preliminarily polymerizing an alpha olefin in the presence of a catalyst comprising the above four catalyst components, provided that the last one is an optional component. This process achieves the industrially advantage that the catalysts are highly active, and give a polymer having excellent stereoregularity.
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申请公布号 |
US6121393(A) |
申请公布日期 |
2000.09.19 |
申请号 |
US19950418879 |
申请日期 |
1995.04.07 |
申请人 |
MITSUI CHEMICALS |
发明人 |
KIOKA, MAMORU;KASHIWA, NORIO;KIMURA, TOMOHIKO;TOMURA, MITSUO;SOTOYAMA, TOSHIKI |
分类号 |
C08F2/18;(IPC1-7):C08F2/18 |
主分类号 |
C08F2/18 |
代理机构 |
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主权项 |
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地址 |
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