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8 条记录 (耗时 0.013 秒)

    Low creep polypropylene textiles
    1.
    发明授权
    Low creep polypropylene textiles 失效
    低粘度聚丙烯纺织品

    公开(公告)号：US5171628A

    公开(公告)日：1992-12-15

    申请号：US357146

    申请日：1989-05-25

    申请人： Marsha M. Arvedson ,  Gerhardt E. Wissler

    发明人： Marsha M. Arvedson ,  Gerhardt E. Wissler

    IPC分类号： D01F6/46

    CPC分类号： D01F6/46 ,  Y10T442/697

    摘要： Low creep polypropylene textiles are disclosed which comprise a blend of isotactic polypropylene with 10-30 weight percent of a resin obtained by hydrogenating polymerized olefinically unsaturated monomers derived from petroleum cracking, e.g., polydicyclopentadiene. The hydrocarbon resin has a weight average molecular weight of from 500 to 1000 and a glass transition temperature of from 40.degree. C. to 90.degree. C. The blend exhibits creep resistance at ambient temperatures and has a glass transition temperature greater than 20.degree. C. The textile blend is useful in carpet, drapery and other applications wherein creep resistance and resiliency are desirable.

    Cling packaging film for wrapping food products
    2.
    发明授权
    Cling packaging film for wrapping food products 失效
    包装食品包装膜

    公开(公告)号：US5112674A

    公开(公告)日：1992-05-12

    申请号：US432959

    申请日：1989-11-07

    申请人： Paul M. German ,  Marsha M. Arvedson

    发明人： Paul M. German ,  Marsha M. Arvedson

    IPC分类号： B32B27/32

    CPC分类号： B32B27/322 ,  Y10T428/24975 ,  Y10T428/31917 ,  Y10T428/31928 ,  Y10T428/31931

    摘要： The present invention is directed to a cling packaging film for use in wrapping food products, particularly fresh meat and produce. The film comprises a core layer containing a copolymer of ethylene and an ethylenically unsaturated polar comonomer together with an elastomeric polymer. The film further comprises a skin layer containing linear low density polyethylene. Both the core and skin layers may contain additional components. A film in accord with the present invention compares favorably with PVC food wrap film and is intended to provide a replacement therefor.

    摘要翻译： 本发明涉及一种用于包装食品，特别是鲜肉和制品的粘贴包装薄膜。 该膜包括含有乙烯和烯属不饱和极性共聚单体的共聚物与弹性体聚合物的核心层。 膜还包括含有线性低密度聚乙烯的表层。 核心层和表层都可能包含其他组件。 根据本发明的薄膜与PVC食品包装薄膜相比较好，旨在为其提供替代品。

    Narrow molecular weight distribution ethylene-acrylate cling layer in stretch/cling films
    5.
    发明授权
    Narrow molecular weight distribution ethylene-acrylate cling layer in stretch/cling films 失效
    拉伸/粘贴膜中窄分子量分布乙烯 - 丙烯酸酯粘合层

    公开(公告)号：US5173343A

    公开(公告)日：1992-12-22

    申请号：US633509

    申请日：1990-12-28

    申请人： Marsha M. Arvedson ,  Patrick Brant ,  Joseph D. Domine ,  Paul M. German

    发明人： Marsha M. Arvedson ,  Patrick Brant ,  Joseph D. Domine ,  Paul M. German

    IPC分类号： B32B27/08 ,  B32B27/32

    CPC分类号： B32B27/08 ,  B32B27/32 ,  Y10S428/91 ,  Y10T428/1328 ,  Y10T428/31913 ,  Y10T428/31928

    摘要： A thermoplastic film is provided which is especially suited for use in stretch/cling applications such as, for example, the bundling, packaging and unitizing of foods and other goods. The film comprises a cling layer comprising a polymer of at least ethylene and 2-40 wt % acrylate having a ratio of M.sub.w /M.sub.n less than about 3.5, a ratio of M.sub.z /M.sub.w less than about 3, a melt index of about 0.1-30 dg/min, and a melt index swell ratio less than about 1.6, preferably without a tackifying additive. The film may further comprise a non-cling layer comprising a thermoplastic preferably essentially free of anticling (slip and/or antiblock) additive. Preferred thermoplastic materials include polyethylene and polypropylene.

    摘要翻译： 提供了一种热塑性薄膜，其特别适用于拉伸/粘贴应用，例如食品和其他物品的捆扎，包装和组合。 该薄膜包括一层粘合层，该粘结层包含至少为乙烯和2-40wt％丙烯酸酯的聚合物，其Mw / Mn比小于约3.5，Mz / Mw小于约3，熔体指数为约0.1 30dg / min，熔体指数溶胀比小于约1.6，优选不含增粘剂。 膜可以进一步包括非粘附层，其包含优选基本上不含抗皱（滑动和/或抗粘连）添加剂的热塑性塑料。 优选的热塑性材料包括聚乙烯和聚丙烯。

    Low comonomer content ethylene-acrylate polymers in stretch/cling films
    6.
    发明授权
    Low comonomer content ethylene-acrylate polymers in stretch/cling films 失效
    低共聚单体含量在拉伸/粘贴膜中的乙烯 - 丙烯酸酯聚合物

    公开(公告)号：US5141809A

    公开(公告)日：1992-08-25

    申请号：US633488

    申请日：1990-12-28

    申请人： Marsha M. Arvedson ,  Joseph D. Domine ,  Paul M. German

    发明人： Marsha M. Arvedson ,  Joseph D. Domine ,  Paul M. German

    IPC分类号： B32B27/08 ,  B32B27/32

    CPC分类号： B32B27/32 ,  B32B27/08 ,  Y10T428/2826 ,  Y10T428/31913 ,  Y10T428/31928 ,  Y10T428/31935

    摘要： A thermoplastic film is provided which is especially suited for use in stretch/cling applications such as, for example, the bundling, packaging and unitizing of foods and other goods. The film comprises a cling layer comprising (i) a non-cling polymer of at least ethylene and acrylate or vinyl acetate, blended with (ii) a compatible, non-migratory tackifier. The film may further comprise a non-cling layer comprising a polyolefin essentially free of tackifier, with or without an anticling (slip and/or antiblock) additive. Preferred polyolefins include linear low density polyethylene and polypropylene.

    摘要翻译： 提供了一种热塑性薄膜，其特别适用于拉伸/粘贴应用，例如食品和其他物品的捆扎，包装和组合。 所述膜包括粘附层，所述粘附层包含（i）至少乙烯和丙烯酸酯或乙酸乙烯酯的非粘着聚合物，与（ii）相容的非迁移性增粘剂共混。 膜可以进一步包含含有基本上不含增粘剂的聚烯烃的非粘附层，具有或不具有抗皱（滑移和/或抗粘连）添加剂。 优选的聚烯烃包括线性低密度聚乙烯和聚丙烯。

    Polymer compositions comprising cyclic olefin copolymers and polyolefin modifiers
    8.
    发明申请
    Polymer compositions comprising cyclic olefin copolymers and polyolefin modifiers 审中-公开
    包含环烯烃共聚物和聚烯烃改性剂的聚合物组合物

    公开(公告)号：US20080033112A1

    公开(公告)日：2008-02-07

    申请号：US11820739

    申请日：2007-06-20

    申请人： Kevin R. Squire ,  Alan J. Oshinski ,  Kevin D. Robinson ,  Christian Peter Mehnert ,  Marsha M. Arvedson ,  Beverly J. Poole ,  Abhimanyu Onkar Patil ,  Lisa Saunders Baugh ,  Karla Schall Colle

    发明人： Kevin R. Squire ,  Alan J. Oshinski ,  Kevin D. Robinson ,  Christian Peter Mehnert ,  Marsha M. Arvedson ,  Beverly J. Poole ,  Abhimanyu Onkar Patil ,  Lisa Saunders Baugh ,  Karla Schall Colle

    IPC分类号： C08L23/00

    CPC分类号： C08L23/0823 ,  C08L23/16 ,  C08L53/00 ,  C08L2314/06 ,  C08L2666/24 ,  C08L2666/06

    摘要： A polymer composition comprises (a) greater than 50 wt % (based upon the weight of the composition) of a cyclic olefin copolymer comprising at least one acyclic olefin and at least 20 weight % of one or more cyclic olefins (based upon the weight of the cyclic olefin copolymer), wherein at least a portion of the cyclic olefin copolymer has a glass transition temperature of greater than 150° C.; and (b) less than 50 wt % (based upon the weight of the composition) of an acyclic olefin polymer modifier, at least a portion of the modifier having a glass transition temperature of less than −30° C.; and no portion of the modifier having a softening point greater than +30° C., wherein the Bicerano solubility parameter of the modifier being no more than 0.6 J0.5/cm1.5 less than the Bicerano solubility parameter of the cyclic olefin copolymer. The polymer composition has a notched Izod impact resistance measured at 23° C. of greater than 500 J/m and a heat distortion temperature measured using a 0.46 MPa load of greater than 135° C.

    摘要翻译： 聚合物组合物包含（a）大于50重量％（基于组合物的重量）的包含至少一种非环烯烃和至少20重量％的一种或多种环烯烃的环烯烃共聚物（基于 环烯烃共聚物），其中至少一部分环烯烃共聚物的玻璃化转变温度大于150℃; 和（b）小于50重量％（基于组合物的重量）非环烯烃聚合物改性剂，至少一部分改性剂的玻璃化转变温度低于-30℃; 并且所述改性剂的任何部分的软化点大于+ 30℃，其中所述改性剂的二辛醇溶解度参数不大于0.6J / 小于环烯烃共聚物的Bicerano溶解度参数。 该聚合物组合物在23℃下测得的切口悬臂梁式冲击强度大于500J / m，并且使用大于135℃的0.46MPa载荷测量的热变形温度。