- 专利标题： Random propylene-ethylene copolymers and process for their preparation
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申请号： US15309042申请日： 2015-05-06
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公开(公告)号： US09676883B2公开(公告)日： 2017-06-13
- 发明人: Fabrizio Piemontesi , Caroline Cathelin , Simona Guidotti , Dario Liguori , Giampiero Morini , Davide Tartari , Gianni Vitale
- 申请人： BASELL POLIOLEFINE ITALIA S.R.L.
- 申请人地址： IT Milan
- 专利权人： Basell Poliolefine Italia S.r.l.
- 当前专利权人： Basell Poliolefine Italia S.r.l.
- 当前专利权人地址： IT Milan
- 优先权： EP14167178 20140506
- 国际申请： PCT/EP2015/059919 WO 20150506
- 国际公布： WO2015/169831 WO 20151112
- 主分类号： C08L23/00
- IPC分类号： C08L23/00 ; C08F2/00 ; C08F210/00 ; C08F210/06
摘要：
The present disclosure relates to propylene-ethylene copolymers comprising an ethylene content of 0.1-10% by weight, a molecular weight distribution (MWD), expressed in terms of Mw/Mn, of greater than 3.0 and a xylene soluble (XS) fraction content defined by values that fall below the line given by the equation XS=1.0296·e0.435C2. The propylene-ethylene copolymers advantageously exhibit high transparency and low melting temperatures.
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