发明授权
- 专利标题： Process for producing polypropylene and stretched polypropylene film
- 专利标题（中）： 生产聚丙烯和拉伸聚丙烯薄膜的方法
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申请号： US284186申请日： 1988-12-14
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公开(公告)号： US5159021A公开(公告)日： 1992-10-27
- 发明人: Mamoru Kioka , Masaya Yamada , Masanobu Ishiyama , Masao Nakano , Akinori Toyota
- 申请人： Mamoru Kioka , Masaya Yamada , Masanobu Ishiyama , Masao Nakano , Akinori Toyota
- 申请人地址： JPX Tokyo
- 专利权人： Mitsui Petrochemical Industries, Ltd.
- 当前专利权人： Mitsui Petrochemical Industries, Ltd.
- 当前专利权人地址： JPX Tokyo
- 优先权： JPX62-315204 19871215; JPX62-315205 19871215
- 主分类号： C08F4/64
- IPC分类号： C08F4/64 ; C08F10/06
摘要：
A process for producing polypropylene, which comprises preliminarily polymerizing 3-methylbuten3-1 in the presence of a catalyst system formed from[A] a solid titanium catalyst component containing magnesium, titanium, halogen and polycarboxylic acid esters as essential components,[B] an organoaluminum compound, and[C] an organosilicon compound represented by the general formula R.sub.n Si(OR').sub.4-n wherein R and R' represent a hydrocarbon group, and 0
公开/授权文献
- US3952690A Highway barricade 公开/授权日：1976-04-27
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