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    PERMEABLE POLYMER FILM
    52.
    发明公开
    PERMEABLE POLYMER FILM 有权
    性高分子膜

    公开(公告)号：EP2648910A1

    公开(公告)日：2013-10-16

    申请号：EP11796963.4

    申请日：2011-12-08

    Applicant: Basell Poliolefine Italia S.r.l.

    Inventor： GRAZZI, Michele ,  FELISATI, Andrea ,  PELLEGATTI, Giampaolo

    IPC: B32B27/32 ,  C08L23/14

    CPC classification number: B65D81/28 ,  B32B27/08 ,  B32B27/32 ,  B32B2270/00 ,  B32B2307/30 ,  B32B2307/732 ,  C08L23/142 ,  C08L2203/16 ,  Y10T428/31917 ,  C08L23/16

    Abstract: Films especially suitable for the packaging of fresh foodstuff, like salad and vegetables, due to their valuable balance of high permeability to oxygen and optimal permeability to water vapour, comprising at least one layer A) and at least one layer B), wherein the layer A) comprises a copolymer of propylene with hexene-1 containing from 3 to 9% by weight of recurring units derived from hexene-1, said copolymer having a melting temperature from 125° C. to 143° C., and the layer B) comprises a polyolefin composition containing (all percentages being by weight): a) 10-40% of one or more propylene homopolymers or copolymers containing over 85% of propylene and having a fraction insoluble in xylene at room temperature greater than 80%; and b) 60-90 of one or more copolymers of ethylene with alpha-olefin(s), containing ethylene in a quantity from 20 to 80%, and having solubility in xylene at room temperature greater than 70%.

    POLYOLEFIN COMPOSITIONS
    55.
    发明授权
    POLYOLEFIN COMPOSITIONS 有权
    聚烯烃组合物

    公开(公告)号：EP2084223B1

    公开(公告)日：2010-07-28

    申请号：EP07821124.0

    申请日：2007-10-10

    Applicant: Basell Poliolefine Italia S.r.l.

    Inventor： MARZOLLA, Roberta ,  CIARAFONI, Marco ,  GRAZZI, Michele ,  MASSARI, Paola ,  NEWS, Jean

    IPC: C08L23/10 ,  C08J5/18 ,  C08L23/08

    CPC classification number: C08J5/18 ,  C08F210/06 ,  C08J2323/10 ,  C08L23/08 ,  C08L23/10 ,  C08L2666/06 ,  C08F2/001 ,  C08F4/6492 ,  C08F110/06 ,  C08F2500/12 ,  C08F210/16 ,  C08F210/08 ,  C08F2500/17

    Abstract: Polyolefin compositions, comprising (percent by weight): 1) 55-80% of a homopolymer or copolymer of propylene, said copolymer containing up to 15% of ethylene and/or C4-C10 -olefin(s). 2) 20-45% of a copolymer of ethylene with one or more C4-C10 -olefin(s) containing from 10 to 40% of said C4-C10 -olefin(s); said compositions having values of MFR (230 °C, 2.16 kg) up to 20 g/10 min, a total content of ethylene of 20% or more, a total content of C4-C10 -olefin(s) of 4.5% or more, a ratio of the total content of ethylene to the total content of C4-C10 -olefin(s) of 2.3 or more, a total fract ion soluble in xylene at room temperature of 18 wt% or higher and flexural modulus, referred to the composition as a reactor grade, of more than 700 MPa.

    Abstract translation: 包含（重量百分比）的聚烯烃组合物：1）55-80％的丙烯均聚物或共聚物，所述共聚物含有高达15％的乙烯和/或C4-C10-烯烃。 2）20-45％的乙烯与一种或多种含有10-40％的所述C4-C10-烯烃的C4-C10-烯烃的共聚物; 所述组合物具有至多20g / 10min的MFR（230℃，2.16kg），20％或更多的乙烯总含量，4.5％或更多的C4-C10-烯烃总含量 乙烯的总含量相对于C 4 -C 10 - 烯烃的总含量的比例为2.3以上，室温下在二甲苯中可溶解的总分子离子为18重量％以上，弯曲弹性模量 作为反应器等级的组合物超过700MPa。

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