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    • 4. 发明申请
    • STRETCH WRAP FILMS
    • 拉链卷片
    • WO2004104085A1
    • 2004-12-02
    • PCT/EP2004/005564
    • 2004-05-19
    • BASELL POLIOLEFINE ITALIA S.P.APERDOMI, Gianni
    • PERDOMI, Gianni
    • C08L23/08
    • C08L23/0815C08J5/18C08J2323/08C08L23/06C08L23/0846C08L23/0853C08L23/0869C08L23/10C08L2205/02C08L2666/06
    • A stretchable wrap film comprising a polymer blend comprising (percent by weight): I) 50 to 90% of an ethylene polymer composition comprising a recurring unit derived from an ester selected from (1) ethylenically unsaturated organic monomer of esters of unsaturated C 3 -C 20 monocarboxylic acids and C 1 , to C 24 monovalent aliphatic or alicyclic alcohols, and (2) vinyl esters of saturated C 2 -C 18 carboxylic acids, wherein the ester content ranging from 2.5 to 8 wt% based on the total weight of the final ethylene polymer composition; the ethylene polymer composition having a density ranging from 0.920 to 0.94 g/mL; and II) 10 to 50% of an ethylene-based polymer component having a density ranging from 0.9 to 0. 93 0 g/mL and a melt flow rate up to 4 g/ 10 min. The stretchable wrap film has a ratio between the value of MD tear resistance and the value of TD tear resistance over 0.3 and a value of MD tensile strength at 30% ranging between 6.5 to 15 N. The stretchable film is suited for use as stretch, cling wraps in various bundling, packaging and wrapping operations.
    • 包含(重量%)的聚合物共混物的可拉伸保鲜膜:I)50-90%的乙烯聚合物组合物,其包含衍生自酯的重复单元,所述酯选自(1)不饱和C3-C20的酯的烯属不饱和有机单体 单羧酸和C 1至C 24单价脂族或脂环族醇,和(2)饱和C 2 -C 18羧酸的乙烯基酯,其中酯含量基于最终乙烯聚合物组合物的总重量为2.5至8重量%; 所述乙烯聚合物组合物的密度范围为0.920至0.94g / mL; 和II)10至50%的密度范围为0.9至93.0g / mL和熔体流动速率高达4g / 10min的乙烯基聚合物组分。 可伸缩保鲜膜的MD抗撕裂性能值与TD撕裂强度值之比大于0.3,MD抗拉强度值在30%范围内在6.5〜15N之间。该伸缩性膜适用于拉伸, 在各种捆绑,包装和包装操作中粘贴包装。
    • 7. 发明申请
    • POLYETHYLENE FILMS FOR PACKAGING
    • 聚乙烯薄膜包装
    • WO2004104084A2
    • 2004-12-02
    • PCT/EP2004005353
    • 2004-05-18
    • BASELL POLIOLEFINE SPAPERDOMI GIANNI
    • PERDOMI GIANNI
    • C08L23/08C08L23/14C08J5/18
    • C08L23/0869C08L23/0815C08L23/0853C08L23/142C08L2207/02C08L2666/06
    • An elastic film comprising a polymer blend comprising (percent by weight): 1) 50 to 80% of an ethylene polymer composition comprising a recurring unit derived from an ester selected from (1) ethylenically unsaturated organic monomer of esters of unsaturated C3-C20 monocarboxylic acids and C1, to C24 monovalent aliphatic or alicyclic alcohols, and (2) vinyl esters of saturated C2-C18 carboxylic acids, wherein the ester content ranging from 2.5 to 8 wt% based on the total weight of the final ethylene polymer composition; the ethylene polymer composition having a density ranging from 0.920 to 0.935 g/mL; and II) 20 to 50% of an ethylene-based polymer component having a density ranging from 0.9 to 0.930 g/mL and a melt flow rate up to 4 g/10 min. The film that has a ratio between the MD Elmendorf tear resistance and TD Elmendorf tear resistance of 0.3 or less is suitable for pallet application as banding tape.
    • 包含(重量%)的聚合物共混物的弹性膜:1)50-80%的乙烯聚合物组合物,其包含衍生自酯的重复单元,所述酯选自(1)不饱和C3-C20单羧酸酯的烯属不饱和有机单体 酸和C 1至C 24单价脂族或脂环族醇,和(2)饱和C 2 -C 18羧酸的乙烯基酯,其中酯含量基于最终乙烯聚合物组合物的总重量为2.5至8重量%; 乙烯聚合物组合物的密度范围为0.920-0.935g / mL; 和II)20至50%的密度为0.9至0.930g / mL和熔体流动速率高达4g / 10min的乙烯基聚合物组分。 具有MD Elmendorf抗撕裂性和TD Elmendorf抗撕裂性能之比为0.3以下的膜适用于作为带状带的托盘应用。
    • 8. 发明申请
    • TWO-LAYER POLYOLEFIN THERMOSHRINKABLE FILM
    • 双层聚烯烃热敏电阻膜
    • WO1998025765A1
    • 1998-06-18
    • PCT/EP1997006848
    • 1997-12-08
    • MONTELL TECHNOLOGY COMPANY B.V.PERDOMI, GianniCOMETTO, Claudio
    • MONTELL TECHNOLOGY COMPANY B.V.
    • B32B27/32
    • B32B27/32B32B7/02B32B27/08B32B2307/736B32B2323/046B32B2323/10C08L23/04C08L23/10C08L2314/02C08L2666/04
    • The invention concerns a thermoshrinking film consisting essentially of: a) a layer A of low density polyethylene; b) a layer B made from a composition comprising: 73 to 95 % by weight of a copolymer (i) of ethylene with at least one alpha -olefin CH2=CHR where R is an alkyl radical having 1 to 10 carbon atoms, said copolymer having density between 0.920 and 0.960 g/cm and a content of alpha -olefin CH2=CHR derived units up to 10 % by mole; 5 to 27 % by weight of a copolymer (ii) of propylene with ethylene and/or at least one alpha -olefin CH2=CHR , where R is an alkyl radical having 2 to 10 carbon atoms; said copolymer containing 60 to 98 % by weight of propylene, said copolymer being characterized by a xylene insoluble fraction higher than 70 % by weight; said composition forming layer B having density between 0.915 and 0.950 g/cm , Melt Index E between 0.1 and 2 g/10' and Melt Flow Ratio lower than 50. The film of the invention is particularly suitable for overwrapping low density polyethylene sacks, since heating to induce shrinking does not cause the adhesion of the film to the sacks.
    • 本发明涉及一种基本上由以下组成的热固性膜:a)低密度聚乙烯层A; b)由组合物制成的层B,其包含:73至95重量%的乙烯与至少一种α-烯烃CH 2 = CHR的共聚物(i),其中R是具有1至10个碳原子的烷基,所述共聚物 具有0.920至0.960g / cm 3的密度,并且α-烯烃CH 2 = CHR衍生单元的含量高达10摩尔% 5至27重量%的丙烯与乙烯和/或至少一种α-烯烃CH 2 = CHR 1的共聚物(ii),其中R 1是具有2至10个碳原子的烷基; 所述共聚物含有60至98重量%的丙烯,所述共聚物的特征在于高于70重量%的二甲苯不溶部分; 所述组合物形成层B的密度为0.915至0.950g / cm 3,熔体指数E为0.1至2g / 10',熔体流动比低于50.本发明的膜特别适用于包封低密度聚乙烯 袋子,因为加热以引起收缩,不会导致薄膜粘合到袋子上。