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    PERMEABLE POLYMER FILM
    61.
    发明授权
    PERMEABLE POLYMER FILM 有权

    公开(公告)号：EP2648910B1

    公开(公告)日：2018-08-08

    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: B65D81/28 ,  B32B27/08 ,  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%.

    POLYPROPYLENE COMPOSITIONS CONTAINING GLASS FIBER FILLERS
    64.
    发明公开
    POLYPROPYLENE COMPOSITIONS CONTAINING GLASS FIBER FILLERS 有权
    含纤维填料的聚丙烯组合物

    公开(公告)号：EP3017003A1

    公开(公告)日：2016-05-11

    申请号：EP14732554.2

    申请日：2014-06-24

    Applicant: Basell Poliolefine Italia S.r.l.

    Inventor： KÖHLER, Rainer ,  GRAZZI, Michele ,  ROHRMANN, Jürgen ,  PELLEGATTI, Giampaolo

    IPC: C08L23/00 ,  B29C45/00

    CPC classification number: C08L23/14 ,  C08K7/14 ,  C08L23/0815 ,  C08L23/10 ,  C08L23/16 ,  C08L51/06 ,  C08L2205/02 ,  C08L2205/025

    Abstract: Composition comprising (A) from 30 to 60 by weight, of a soft polyolefin composition comprising, 10-50% by weight of a copolymer (a) of propylene, which copolymer contains from 1 to 8% of comonomer content; 50-90wt% of a copolymer (b) of ethylene and other alpha-olefin(s), containing from 57 to 80% of ethylene; wherein the weight ratio of the content of copolymer component (b) to the fraction XS soluble in xylene at room temperature (about 25 °C), both (b and XS) referred to the total weight of (a) + (b), is of 1.5 or less, and the intrinsic viscosity [·] of the said XS fraction is of 3 dl/g or more; and the total quantity of copolymerized ethylene is preferably from 30% to 65% by weight; (B) from 5 to 30wt% of a glass fiber filler; (C) from 0 to 5 % by weight of a compatibilizer; (D) from 10 to 40 by weight of a polypropylene component selected from propylene homopolymers, propylene copolymers containing up to 5% by moles of ethylene and/or C 4 -C 10 ±-olefin(s) and combinations of such homopolymers and copolymers, wherein the Melt Flow Rate, of the polypropylene component D) is generally from 0.3 to 2500 g/10 min.

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