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    • 5. 发明授权
    • Polyolefinic compositions having good whitening resistance
    • 具有良好耐白化性的聚烯烃组合物
    • US07795352B2
    • 2010-09-14
    • US11793843
    • 2005-11-28
    • Paola MassariMarco CiarafoniJean News
    • Paola MassariMarco CiarafoniJean News
    • C08L23/00C08L23/04C08F8/00
    • C08L23/10C08L23/04C08L23/06C08L23/08C08L23/12C08L23/142C08L23/16C08L2205/03C08L2666/02C08F210/06C08F2/001C08F4/6492C08F4/651
    • A polypropylene composition comprising (percent by weight) (a) 50-77% of a crystalline propylene polymer having an amount of isotactic pentads (mmmm), measured by 13C-MNR on the fraction insoluble in xylene at 25° C., higher than 97.5 molar % and a polydispersity index ranging from 4 to 10; (b) 13-28% of an elastomeric copolymer of ethylene and propylene, the copolymer having an amount of recurring units deriving from ethylene ranging from 30 to 70% and being partially soluble in xylene at ambient temperature, the polymer fraction soluble in xylene at ambient temperature having an intrinsic viscosity value ranging from 2 to 4 dl/g; and (c) 10-22% of polyethylene having an intrinsic viscosity value ranging from 1 to 3 dl/g, in said composition component (b) plus component (c) being in amounts of at least 25 wt %. The polymer composition exhibits good impact resistant, whitening resistance and relatively low stiffness.
    • 包含(重量%)(a)50-77%具有全同立构五单元组(Mwmm)量的结晶丙烯聚合物的聚丙烯组合物,其通过13C-MNR测量在25℃下不溶于二甲苯的级分,高于 97.5摩尔%,多分散指数为4〜10; (b)13-28%的乙烯和丙烯的弹性体共聚物,该共聚物具有一定量的衍生自乙烯的重复单元,范围为30至70%,并且在环境温度下部分溶于二甲苯,聚合物馏分可溶于二甲苯 环境温度的特性粘度值范围为2至4dl / g; 和(c)所述组合物组分(b)加组分(c)的特性粘度值为1至3dl / g的聚乙烯的10-22%的量为至少25重量%。 聚合物组合物表现出良好的抗冲击性,耐白化性和相对低的刚度。
    • 7. 发明授权
    • Impact resistant polyolefin compositions
    • 耐冲击聚烯烃组合物
    • US07649052B2
    • 2010-01-19
    • US11596503
    • 2005-05-04
    • Paola MassariJean NewsMarco Ciarafoni
    • Paola MassariJean NewsMarco Ciarafoni
    • C08L23/00C08L23/16C08L23/10C08F297/08
    • C08L23/12C08L23/06C08L23/0807C08L23/10C08L23/14C08L23/16C08L2205/02C08L2314/02C08L2666/06
    • A heterophasic polyolefin composition comprising: (A) 50-0% of a crystalline propylene polymer; (B) 5-20% of a first elastomeric copolymer of ethylene with at least a C3-C8 α-olefin comonomer; and (C) 10-45% of a second elastomeric copolymer of ethylene with at least a C3-C8 α-olefin comonomer; wherein the ratio between the ethylene content of the fraction insoluble in xylene at room temperature (C2xif) multiplied by the weight percentage of the fraction insoluble in xylene at room temperature (% XIF) and the ethylene content of the fraction soluble in xylene at room temperature (C2xsf) multiplied by the weight percentage of fraction soluble in xylene at room temperature (% SXF) satisfies the following relation (I): C 2 ⁢ xif × % ⁢ XIF C 2 ⁢ xsf × % ⁢ SXF > 0.01 ⁢ x + 0.261 , wherein x is the total amount of ethylene.
    • 多相聚烯烃组合物,其包含:(A)50-0%的结晶丙烯聚合物; (B)5-20%的乙烯与至少一种C 3 -C 8α-烯烃共聚单体的第一弹性体共聚物; 和(C)10-45%的乙烯与至少一种C 3 -C 8α-烯烃共聚单体的第二弹性体共聚物; 其中在室温下不溶于二甲苯的级分的乙烯含量(C2×10)乘以在室温下不溶于二甲苯的级分的重量百分比(%XIF)和在室温下可溶于二甲苯的级分的乙烯含量之比 (C2xsf)乘以在室温下可溶于二甲苯的馏分的重量百分比(%SXF)满足以下关系式(I):C 2 xif x%XIF C 2 xsf x%SXF> 0.01x + 0.261 ,其中x是乙烯的总量。
    • 9. 发明申请
    • Impact Resistant Polyolefin Compositions
    • US20070203298A1
    • 2007-08-30
    • US11596503
    • 2005-05-04
    • Paola MassariJean NewsMarco Ciarafoni
    • Paola MassariJean NewsMarco Ciarafoni
    • C08F8/00
    • C08L23/12C08L23/06C08L23/0807C08L23/10C08L23/14C08L23/16C08L2205/02C08L2314/02C08L2666/06
    • A heterophasic polyolefin composition comprising (percent by weight): (A) 50-0% of a crystalline propylene polymer having a polydispersity index value from 5.2 to 10 and a content of isotactic pentads (mmmm) higher than 97.5 molar %; said polymer containing at least 95% of recurring units deriving from propylene; (B) 5-20% of a first elastomeric copolymer of ethylene with at least a C3-C8 α-olefin comonomer, said copolymer containing from 25 to less than 40% of ethylene, and being soluble in xylene at room temperature in an amount from higher 85 to 95 wt % the intrinsic viscosity [η] of the xylene soluble fraction ranging from 2.5 to 4.5 dL/g; and (C) 10-45% of a second elastomeric copolymer of ethylene with at least a C3-C8 α-olefin comonomer, said copolymer containing from 50 up to 75% of ethylene, and being soluble in xylene at room temperature in an amount from 50 to 85 wt %, the intrinsic viscosity [η] of the xylene soluble fraction ranging from 1.8 to 4.0 dL/g; wherein the sum of amounts of copolymer (B) and copolymer (C) ranges from 20 to 50% based on the total amount of components (A) to (C), the total amount of ethylene based on the total amount of components (A) to (C) is up to 23% by weight and the ratio between the ethylene content of the fraction insoluble in xylene at room temperature (C2xif) multiplied by the weight percentage of the fraction insoluble in xylene at room temperature (% XIF) and the ethylene content of the fraction soluble in xylene at room temperature (C2xsf) multiplied by the weight percentage of fraction soluble in xylene at room temperature (% SXF), i.e. (C2xif % XIF)/(C2xsf·% SXF), satisfies the following relation (I), wherein x is the total amount of ethylene.