发明授权
US6136936A Ethylene copolymers, process for the preparation of ethylene-based
polymers and catalyst system used therein
失效
乙烯共聚物，用于制备乙烯基聚合物的方法和其中使用的催化剂体系
- 专利标题： Ethylene copolymers, process for the preparation of ethylene-based polymers and catalyst system used therein
- 专利标题（中）： 乙烯共聚物，用于制备乙烯基聚合物的方法和其中使用的催化剂体系
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申请号： US486602申请日： 1995-06-07
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公开(公告)号： US6136936A公开(公告)日： 2000-10-24
- 发明人: Tiziano Dall'Occo , Luigi Resconi , Giulio Balbontin , Enrico Albizzati
- 申请人： Tiziano Dall'Occo , Luigi Resconi , Giulio Balbontin , Enrico Albizzati
- 申请人地址： NLX
- 专利权人： Montell Technology Company B.V.
- 当前专利权人： Montell Technology Company B.V.
- 当前专利权人地址： NLX
- 优先权： ITXMI94A1279 19940620
- 主分类号： C08F4/642
- IPC分类号： C08F4/642 ; B01J21/06 ; B01J31/14 ; B01J31/38 ; C08F4/02 ; C08F4/60 ; C08F4/619 ; C08F4/6192 ; C08F4/645 ; C08F4/6592 ; C08F4/76 ; C08F10/02 ; C08F32/00 ; C08F36/00 ; C08F110/02 ; C08F210/00 ; C08F210/02 ; C08F210/16 ; C08F210/18 ; C08F232/00 ; C08F232/04 ; C08F232/08 ; C08F236/00 ; C08F10/08 ; C08F10/14
摘要：
Ethylene copolymers are prepared with comonomers selected from:(a) .alpha.-olefins,(b) cycloolefins and(c) polyenes,with a content of ethylene units of between 80 and 99 mol %, a content of units derived from .alpha.-olefin, cycloolefin and/or polyene comonomers of between 1 and 20 mol %, characterized in that:(a) in TREF (Temperature Rising Elution Fractionation) analysis, a quantity equal to at least 90% by weight of the copolymer is eluted within a temperature interval of less than 50.degree. C., and(b) M.sub.w /M.sub.n >3, where M.sub.w is the weight-average molecular weight and M.sub.n is the number-average molecular weight, both determined by means of GPC.