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    • 6. 发明申请
    • SOFT POLYOLEFIN COMPOSITIONS
    • 软的聚烯烃组合物
    • WO2003011962A1
    • 2003-02-13
    • PCT/EP2002/003880
    • 2002-04-08
    • BASELL POLIOLEFINE ITALIA S.P.A.PELLICONI, AnteoGARAGNANI, EneaVILLANUEVA, Alvaro
    • PELLICONI, AnteoGARAGNANI, EneaVILLANUEVA, Alvaro
    • C08L23/10
    • C08F210/06C08F297/08C08L23/12C08L23/142C08L23/16C08L2205/02C08L2207/02C08L2308/00C08L2314/02C08F2/001C08L2666/04C08F210/16C08F2500/17C08F2500/12
    • A polyolefin composition comprising: (A) from 8 to 25% by weight of a crystalline homopolymer or copolymer of propylene: (B) from 75 to 92% by weight of an elastomeric fraction comprising: (1) a first elastomeric copolymer of propylene with from 15 to 32% by weight at least one alpha-olefin of formula H 2 C=CHR, where R is H or a C 2-6 linear or branched alkyl, optionally containing 0.5 to 5% by weight of a diene, said first elastomeric copolymer containing alpha-olefin, and having solubility in xylene at room temperature greater than 50% by weight, the intrinsic viscosity of the xylene soluble fraction ranging from 3.0 to 5.0 dl/g; and (2) a second elastomeric copolymer of propylene with at least one alpha-olefin of formula H 2 C=CHR, where R is H or a C 2-6 linear or branched alkyl, optionally containing 0.5 to 5% by weight of a diene, said second elastomeric copolymer containing more than 32% up to 45% by weight alpha-olefin, and having solubility in xylene at room temperature greater than 80% by weight, the intrinsic viscosity of the xylene soluble fraction ranging from 4.0 to 6.5 dl/g; the (1)/(2) weight ratio ranging from 1:5 to 5:1.
    • 一种聚烯烃组合物,其包含:(A)8至25重量%的结晶均聚物或丙烯共聚物:(B)75至92重量%的弹性体部分,其包含:(1)丙烯与 15至32重量%的至少一种式H2C = CHR的α-烯烃,其中R为H或任选含有0.5至5重量%二烯的C 2-6直链或支链烷基,所述第一弹性体共聚物含有 并且在室温下在二甲苯中的溶解度大于50重量%,二甲苯可溶部分的特性粘度为3.0-5.0dl / g; 和(2)丙烯与至少一种式H2C = CHR的α-烯烃的第二弹性体共聚物,其中R是H或任选含有0.5至5重量%二烯的C 2-6直链或支链烷基,所述 第二弹性体共聚物含有超过32%至45%(重量)的α-烯烃,并且在室温下在二甲苯中的溶解度大于80%(重量),二甲苯可溶级分的特性粘度为4.0至6.5dl / g; (1)/(2)重量比为1:5至5:1。