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    Stretchable multilayer films
    3.
    发明授权
    Stretchable multilayer films 失效
    可拉伸多层膜

    公开(公告)号：US6010772A

    公开(公告)日：2000-01-04

    申请号：US747913

    申请日：1996-11-12

    申请人： Gianni Perdomi ,  Claudio Cometto ,  Emanuele Burgin

    发明人： Gianni Perdomi ,  Claudio Cometto ,  Emanuele Burgin

    IPC分类号： B32B27/32 ,  C08L23/08 ,  C08L23/14 ,  C08L23/16 ,  B32B7/02

    CPC分类号： C08L23/0815 ,  B32B27/32 ,  C08L23/16 ,  C08L2207/02 ,  C08L2207/14 ,  C08L23/14 ,  C08L23/142 ,  Y10T428/24942 ,  Y10T428/2495 ,  Y10T428/24992 ,  Y10T428/265 ,  Y10T428/31913

    摘要： Stretchable multilayer films in which at least one layer (A) thereof comprises a copolymer (I) of ethylene with one or more .alpha.-olefins CH.sub.2 .dbd.CHR, having a density of between 0.88 and 0.945 g/cm.sup.3, a melt index of from 0.1 to 10 g/10' and containing up to 20 mol % of .alpha.-olefin CH.sub.2 .dbd.CHR (LLDPE), and at least one layer (B) comprises a heterophasic polyolefin composition having:(a) 20-100 parts by weight of a fraction which is insoluble in xylene at room temperature, comprising a propylene homopolymer or a copolymer of propylene with ethylene and/or another .alpha.-olefin CH.sub.2 .dbd.CHR.sup.I, this fraction containing more than 85% by weight of units derived from propylene; and (b) 30-80 parts by weight of a fraction which is soluble in xylene at room temperature, comprising an amorphous copolymer of ethylene with propylene and/or another .alpha.-olefin CH.sub.2 .dbd.CHR.sup.I, this fraction optionally containing smaller proportions of a diene and containing more than 15% by weight of units derived from ethylene.

    摘要翻译： 可拉伸多层膜，其中至少一层（A）包含乙烯与一种或多种α-烯烃CH 2 = CHR的共聚物（I），密度为0.88-0.945g / cm 3，熔体指数为0.1 至10g / 10'，并含有至多20mol％的α-烯烃CH 2 = CHR（LLDPE），并且至少一层（B）包含多相聚烯烃组合物，其具有：（a）20-100重量份的 包含丙烯均聚物或丙烯与乙烯和/或另一种α-烯烃CH2 = CHRI的共聚物的馏分，该馏分含有大于85重量％的衍生自丙烯的单元; 和（b）30-80重量份在室温下可溶于二甲苯的级分，其包含乙烯与丙烯和/或另一种α-烯烃CH 2 = CHRI的无定形共聚物，该级分任选地含有较少比例的二烯 并含有大于15重量％的衍生自乙烯的单元。

    LLDPE-based stretchable multilayer films
    5.
    发明授权
    LLDPE-based stretchable multilayer films 失效
    基于LLDPE的可拉伸多层膜

    公开(公告)号：US5972486A

    公开(公告)日：1999-10-26

    申请号：US747684

    申请日：1996-11-12

    申请人： Claudio Cometto ,  Gianni Perdomi ,  Camillo Cagnani

    发明人： Claudio Cometto ,  Gianni Perdomi ,  Camillo Cagnani

    IPC分类号： C08J5/18 ,  B32B27/32 ,  C08F210/02 ,  C08F210/06 ,  C08L23/06 ,  C08L23/08 ,  C08L23/14

    CPC分类号： B32B27/32 ,  C08L23/0815 ,  C08L23/06 ,  C08L23/14 ,  Y10T428/2495 ,  Y10T428/31913

    摘要： Stretchable multilayer films in which at least one layer comprises:a) a linear low density polyethylene (LLDPE),b) a copolymer of propylene with ethylene and/or with one or more .alpha.-olefins CH.sub.2 .dbd.CHR.sup.I, in which R.sup.I is an alkyl radical having from 2 to 10 carbon atoms, this copolymer being of relatively high insolubility in xylene; andc) a low density polyethylene (LDPE).The said films, which have improved optical and mechanical properties, are particularly suitable for use in the packaging sector.

    摘要翻译： 其中至少一层包括：a）线性低密度聚乙烯（LLDPE），b）丙烯与乙烯和/或与一种或多种α-烯烃CH 2 = CHR 3的共聚物，其中R 1是烷基 具有2至10个碳原子的基团，该共聚物在二甲苯中具有相对高的不溶性; 和c）低密度聚乙烯（LDPE）。 所述具有改善的光学和机械性能的膜特别适用于包装领域。

    Stretchable multilayer films
    7.
    发明授权
    Stretchable multilayer films 失效
    可拉伸多层膜

    公开(公告)号：US06159587A

    公开(公告)日：2000-12-12

    申请号：US95278

    申请日：1998-06-10

    申请人： Gianni Perdomi

    发明人： Gianni Perdomi

    IPC分类号： B32B27/32

    CPC分类号： B32B27/32 ,  B32B27/08 ,  B32B2250/242 ,  B32B2307/718 ,  B32B2307/72 ,  Y10T428/2495 ,  Y10T428/31913

    摘要： Stretchable multilayer films in which at least one outer layer (A) comprises a linear low density polyethylene (LLDPE), at least one intermediate layer (B) comprises a polyolefin composition containing LLDPE and a propylene polymer having an insolubility in xylene higher than 70%, and at least another layer (C) comprises a very low density polyethylene (VLDPE). bSaid films show an excellent balance between mechanical properties, represented as tear resistance and strength at break, and optical properties represented as gloss and haze.

    摘要翻译： 至少一层外层（A）包含线性低密度聚乙烯（LLDPE）的伸缩性多层膜，至少一层中间层（B）包含含有LLDPE的聚烯烃组合物和二甲苯中不溶性的丙烯聚合物高于70％ ，并且至少另一层（C）包含极低密度聚乙烯（VLDPE）。 b表示在机械性能，表现为抗撕裂性和断裂强度之间的良好平衡，以及表现为光泽和雾度的光学性质。

    Stretch wrap films
    8.
    发明申请
    Stretch wrap films 审中-公开
    拉伸包膜

    公开(公告)号：US20060223942A1

    公开(公告)日：2006-10-05

    申请号：US10557297

    申请日：2004-05-19

    申请人： Gianni Perdomi

    发明人： Gianni Perdomi

    IPC分类号： C08L23/04

    CPC分类号： C08L23/0815 ,  C08J5/18 ,  C08J2323/08 ,  C08L23/06 ,  C08L23/0846 ,  C08L23/0853 ,  C08L23/0869 ,  C08L23/10 ,  C08L2205/02 ,  C08L2666/06

    摘要： 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 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 0.94 g/mL; and II) 10 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 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.

    摘要翻译： 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，其包含源自酯的重复单元，所述酯选自（1）不饱和C

    Polymer Filament
    10.
    发明申请
    Polymer Filament 有权
    聚合物长丝

    公开(公告)号：US20120171393A1

    公开(公告)日：2012-07-05

    申请号：US13496457

    申请日：2010-09-13

    申请人： Roberto de Palo ,  Roberto Vanzini ,  Gianni Perdomi ,  Andrea Felisati

    发明人： Roberto de Palo ,  Roberto Vanzini ,  Gianni Perdomi ,  Andrea Felisati

    IPC分类号： A41G1/00 ,  C08L23/16 ,  C08L23/20 ,  C08L23/14

    CPC分类号： D01F6/46 ,  D01D5/42 ,  D06N7/0065 ,  E01C13/08

    摘要： A polymer filament comprising a polyolefin composition which comprises at least 10% by weight of one or more copolymer(s) (I) of propylene with one or more comonomers selected from ethylene, C4-C10 α-olefins and their combinations, said copolymer or copolymers (I) having MFR from 0.5 to 10 g/10 min. and containing units deriving from the said comonomers in a total amount of from 0.5 to 25% by weight with respect to the total amount of all momoner units in the copolymer, provided that, in the absence of comonomer units deriving from C6-C10 α-olefins, the amount of comonomer units deriving from ethylene or C4-C5 α-olefins or their combinations is at least 2.5% by weight.

    摘要翻译： 一种聚合物长丝，其包含聚烯烃组合物，其包含至少10重量％的一种或多种丙烯共聚物（I）与一种或多种选自乙烯，C 4 -C 10α-烯烃及其组合的共聚单体的共聚物，所述共聚物或 共聚物（I）的MFR为0.5〜10g / 10分钟。 并且相对于共聚物中所有共聚单元的总量，含有总共为0.5〜25重量％的共聚单体衍生的单元，条件是在不存在衍生自C 6 -C 10α-烯烃的共聚单体单元的情况下， 烯烃，衍生自乙烯或C 4 -C 5α-烯烃或其组合的共聚单体单元的量为至少2.5重量％。