发明公开
- 专利标题： POLYOLEFIN COMPOSITIONS HAVING IMPROVED OPTICAL AND MECHANICAL PROPERTIES
- 专利标题（中）： 具有改进的光学和机械性能的聚烯烃
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申请号： EP08787475.6申请日： 2008-08-26
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公开(公告)号： EP2193167A1公开(公告)日： 2010-06-09
- 发明人: FIEBIG, Joachim , GAHLEITNER, Markus , JÄÄSKELÄINEN, Pirjo , MALM, Bo , SCHEDENIG, Tonja
- 申请人： Borealis Technology OY
- 申请人地址： P.O.Box 330 06101 Porvoo FI
- 专利权人： Borealis Technology OY
- 当前专利权人： Borealis Technology OY
- 当前专利权人地址： P.O.Box 330 06101 Porvoo FI
- 代理机构： Lux, Berthold
- 优先权： EP07117379 20070927
- 国际公布： WO2009040201 20090402
- 主分类号： C08L23/14
- IPC分类号： C08L23/14 ; C08J5/18 ; C08F210/06
摘要：
Novel polyolefin compositionscomprising (A) a first propylene-ethylene random copolymerand (B) a second propylene-ethylene random copolymer, wherein the polyolefin composition has an ethylene content CMAB of 1 - 10wt% and an MFR(AB) of 3 - 20g/10 min with the proviso that CMAB > CMA and MFR(A)/MFR(AB) >1.45 and where the polyolefincomposition further has a randomness R of the ethylene distribution in the polymer chain of ≥ 0.945. Articles made from the novel polyolefin compositions have excellent optical properties even after subjecting them to a heat sterilisation step.
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