发明申请
- 专利标题： PROCESS FOR THE PREPARATION OF ETHYLENE POLYMERS WITH NARROW MOLECULAR WEIGHT DISTRIBUTION
- 专利标题（中）： 制备具有窄分子量分布的乙烯聚合物的方法
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申请号： US13387106申请日： 2010-08-02
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公开(公告)号： US20120130031A1公开(公告)日： 2012-05-24
- 发明人: Masaki Fushimi , Dario Liguori , Tiziano Dall'Occo , Giampiero Morini , Joachim T.M. Pater , Gianni Vitale
- 申请人： Masaki Fushimi , Dario Liguori , Tiziano Dall'Occo , Giampiero Morini , Joachim T.M. Pater , Gianni Vitale
- 申请人地址： IT Milano
- 专利权人： BASELL POLIOLEFINE ITALIA S.R.I
- 当前专利权人： BASELL POLIOLEFINE ITALIA S.R.I
- 当前专利权人地址： IT Milano
- 优先权： EP09167346.7 20090806
- 国际申请： PCT/EP10/61212 WO 20100802
- 主分类号： C08F4/76
- IPC分类号： C08F4/76
摘要：
Process for the preparation of ethylene polymers having narrow MWD characterized by a F/E ratio lower than 35 carried out in the presence of a catalyst system comprising (a) a solid catalyst component comprising Ti atoms that are substantially in the +4 oxidation state, Mg, Cl, and optionally OR groups and internal donors in which R is a C1-C20 hydrocarbon group, in which the OR/Ti molar ratio is equal to or lower than 0.35 and the internal donor/Ti ratio is lower than 1, (b) an aluminum alkyl compound and (c) a compound selected from alkoxybenzenes of specified formula.