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公开(公告)号:US07732027B2
公开(公告)日:2010-06-08
申请号:US11791866
申请日:2005-11-28
CPC分类号: B32B15/08 , B32B15/20 , B32B27/08 , B32B27/32 , B32B2270/00 , B32B2307/31 , B32B2307/412 , B32B2439/46 , B32B2439/70 , C08F297/08 , C08F297/083 , C08J5/18 , C08J2323/14 , C08L23/04 , C08L23/08 , C08L23/0815 , C08L23/10 , C08L23/142 , C08L23/16 , C08L53/00 , C08L2205/02 , C08L2666/02 , C08L2666/04 , C09J153/00 , Y10T428/1324 , Y10T428/1334 , Y10T428/1338 , Y10T428/1352 , Y10T428/31692 , Y10T428/31938 , C08L2666/06
摘要: A polypropylene film comprising 70-90 wt. % polymer (a), 2-10 wt. % polymer (b), 2-10 wt. % polymer (c) and 3-20 wt. % polymer (d) and having a haze of 8-30% (wherein the polymer (a) is a block copolymer prepared by producing a polymer part (component a1) by polymerizing in a first step monomers composed mainly of propylene in the absence of an inert solvent and producing an ethylene/propylene copolymer part (component a2) in a second step by polymerization subsequently carried out in a gas phase; the polymer (b) is an ethylene-based polymer having a density of 0.91-0.97 g/cm3 and a melt flow rate of 5-30 g/10 min; the polymer (c) is an ethylene/α-olefin random copolymer having a density of 0.86-0.90 g/cm3 and a melt flow rate of 0.3-5 g/10 min; and the polymer (d) comprises two or more propylene-based polymers different in molecular weight from each other).
摘要翻译: 包含70-90重量% %聚合物(a),2-10重量% %聚合物(b),2-10重量% %聚合物(c)和3-20wt。 %聚合物(d),雾度为8-30%(其中聚合物(a)是通过在第一步中聚合制备聚合物部分(组分a1)而制备的嵌段共聚物,其中主要由丙烯组成的单体在不存在 惰性溶剂,然后在气相中随后进行聚合,在第二步中制备乙烯/丙烯共聚物部分(组分a2);聚合物(b)是密度为0.91-0.97g / cm 3的乙烯类聚合物 熔体流动速率为5-30g / 10min;聚合物(c)为密度为0.86-0.90g / cm3,熔体流动速率为0.3-5g / 10的乙烯/α-烯烃无规共聚物 分钟;聚合物(d)包含两种或多种彼此分子量不同的基于丙烯的聚合物)。
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公开(公告)号:US20080213519A1
公开(公告)日:2008-09-04
申请号:US11791866
申请日:2005-11-28
CPC分类号: B32B15/08 , B32B15/20 , B32B27/08 , B32B27/32 , B32B2270/00 , B32B2307/31 , B32B2307/412 , B32B2439/46 , B32B2439/70 , C08F297/08 , C08F297/083 , C08J5/18 , C08J2323/14 , C08L23/04 , C08L23/08 , C08L23/0815 , C08L23/10 , C08L23/142 , C08L23/16 , C08L53/00 , C08L2205/02 , C08L2666/02 , C08L2666/04 , C09J153/00 , Y10T428/1324 , Y10T428/1334 , Y10T428/1338 , Y10T428/1352 , Y10T428/31692 , Y10T428/31938 , C08L2666/06
摘要: A polypropylene film comprising 70-90 wt. % polymer (a), 2-10 wt. % polymer (b), 2-10 wt. % polymer (c) and 3-20 wt. % polymer (d) and having a haze of 8-30% (wherein the polymer (a) is a block copolymer prepared by producing a polymer part (component a1) by polymerizing in a first step monomers composed mainly of propylene in the absence of an inert solvent and producing an ethylene/propylene copolymer part (component a2) in a second step by polymerization subsequently carried out in a gas phase; the polymer (b) is an ethylene-based polymer having a density of 0.91-0.97 g/cm3 and a melt flow rate of 5-30 g/10 min; the polymer (c) is an ethylene/α-olefin random copolymer having a density of 0.86-0.90 g/cm3 and a melt flow rate of 0.3-5 g/10 min; and the polymer (d) comprises two or more propylene-based polymers different in molecular weight from each other).
摘要翻译: 包含70-90重量% %聚合物(a),2-10重量% %聚合物(b),2-10重量% %聚合物(c)和3-20wt。 %聚合物(d),雾度为8-30%(其中聚合物(a)是通过在第一步中聚合制备聚合物部分(组分a1)而制备的嵌段共聚物,其中主要由丙烯组成的单体在不存在 惰性溶剂,并在第二步中通过在气相中进行聚合制备乙烯/丙烯共聚物部分(组分a2);聚合物(b)是密度为0.91-0.97g / cm 3的乙烯类聚合物 3,熔体流动速率为5-30g / 10min;聚合物(c)是密度为0.86-0.90g / cm 3的乙烯/α-烯烃无规共聚物 并且熔体流动速率为0.3-5g / 10min;聚合物(d)包含两种或更多种不同分子量的基于丙烯的聚合物)。
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