PERMEABLE POLYMER FILM
    1.
    发明申请
    PERMEABLE POLYMER FILM 审中-公开
    透明聚合物薄膜

    公开(公告)号:WO2012076633A1

    公开(公告)日:2012-06-14

    申请号:PCT/EP2011/072144

    申请日:2011-12-08

    IPC分类号: B32B27/32 C08L23/14

    摘要: 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 α-olefin(s), containing ethylene in a quantity from 20 to 80%, and having solubility in xylene at room temperature greater than 70%.

    摘要翻译: 由于其对氧的高渗透性和对水蒸气的最佳渗透性的有价​​值的平衡,包括至少一层A)和至少一层B),特别适用于新鲜食品(如沙拉和蔬菜)的包装的薄膜,其中层 A)包含丙烯与己烯-1的共聚物,其含有3至9重量%的衍生自己烯-1的重复单元,所述共聚物的熔融温度为125℃至143℃,并且B层包括 含有(所有百分比均为重量百分比)的聚烯烃组合物:a)10-40%的一种或多种丙烯均聚物或共聚物,其含有超过85%的丙烯并且在室温下不溶于二甲苯的级分大于80%; 和b)60-90的乙烯与α-烯烃的一种或多种共聚物,其含有量为20至80%的乙烯,并且在室温下在二甲苯中的溶解度大于70%。

    COMPOSITION COMPRISING PROPYLENE-ETHYLENE-1-BUTENE TERPOLYMERS
    4.
    发明申请
    COMPOSITION COMPRISING PROPYLENE-ETHYLENE-1-BUTENE TERPOLYMERS 审中-公开
    包含丙烯 - 乙烯-1-丁烯共聚物的组合物

    公开(公告)号:WO2017021138A1

    公开(公告)日:2017-02-09

    申请号:PCT/EP2016/067144

    申请日:2016-07-19

    IPC分类号: B32B27/32 C08J5/18 C08L23/14

    摘要: A polyolefin composition comprising: A) from 19 wt% to 50 wt% of a propylene ethylene copolymer having an ethylene derived units content ranging from 1.5 wt% to 6.0 wt%; B) from 50 wt% to 81 wt% of a propylene ethylene 1-butene terpolymer having an ethylene derived units content ranging from 1.5 wt% and 6.0 wt% and 1-butene derived units content of between 4.8 wt% and 12.4 wt%; the sum of the amount of component A) and B) being 100; the composition being characterized by the following features: - the ratio C2wt%/C4wt% is comprised between 0.22 and 3.0, where C2wt% is the weight per cent of ethylene derived units and C4wt% is the weight per cent of 1-butene derived units; - the content of xylene soluble fraction at 25°C is comprised between 2 and 15 wt%; - molecular weight distribution (MWD), expressed in terms of Mw/Mn, greater than 4.0; recoverable compliance at 200°C having a maximum value between 800 and 1200 seconds lower than 65x10 -5 Pa -1 .

    摘要翻译: 一种聚烯烃组合物,其包含:A)19重量%至50重量%的乙烯衍生单元含量为1.5重量%至6.0重量%的丙烯乙烯共聚物; B)50重量%至81重量%的乙烯衍生单元含量为1.5重量%至6.0重量%,1-丁烯衍生单元含量为4.8重量%至12.4重量%的丙烯乙烯1-丁烯三元共聚物; 组分A)和B)的量的总和为100; 该组合物的特征在于以下特征: - C2wt%/ C4wt%的比例在0.22和3.0之间,其中C2wt%是乙烯衍生单元的重量百分比,C4wt%是1-丁烯衍生单元的重量百分比 ; - 二甲苯可溶成分在25℃下的含量为2至15重量%; - 分子量分布(MWD),以Mw / Mn表示,大于4.0; 在200℃的可恢复顺应性,其最大值低于65×10 -5 Pa -1 -100秒。

    BOPP MULTILAYER FILM
    7.
    发明申请

    公开(公告)号:WO2020114760A1

    公开(公告)日:2020-06-11

    申请号:PCT/EP2019/081638

    申请日:2019-11-18

    摘要: A BOPP multilayer film having at least three layers wherein each layer comprises the same nucleated propylene polymer composition; said propylene polymer composition having: A) from 77 wt% to 91 wt%, of a propylene homopolymer having a fraction insoluble in xylene at 25 °C higher than 95 %; B) from 9 wt % to 23 wt%, of a copolymer of propylene with from 28.0 wt% to 42.0 wt% of ethylene derived units; the composition having an intrinsic viscosity of the fraction soluble in xylene at 25 °C comprised between 1.0 dl/g and 1.9 dl/g, a fraction soluble in xylene at 25 °C comprised between 9.0 wt% and 21.0 wt%, a total melt flow rate (Melt Flow Rate according to ISO 1133, condition L, i.e. 230°C and 2.16 kg load) comprised between 1.5 and 5 g/lO min and the value of the relation: 22.5+0.2*MFR-1.2*Xs+0.2*IV is higher than 5.9; wherein MFR is the melt flow rate of the nucleated composition (Melt Flow Rate according to ISO 1133, condition L, i.e. 230°C and 2.16 kg load); IV is the intrinsic viscosity of the fraction soluble in xylene at 25 °C; and Xs is the fraction soluble in xylene at 25°C; wherein the amount of A+B is equal to 100 wt% and wherein the nucleated agent is selected from the group consisting of aromatic or aliphatic carboxylic acids, aromatic metal phosphates, sorbitol derivatives and talc.