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    Polypropylene multi-layer film
    3.
    发明授权
    Polypropylene multi-layer film 失效
    聚丙烯多层膜

    公开(公告)号：US4786562A

    公开(公告)日：1988-11-22

    申请号：US69223

    申请日：1987-07-02

    申请人： Masahiro Kakugo ,  Tadatoshi Ogawa ,  Seiichiro Ima ,  Teruaki Yoshida

    发明人： Masahiro Kakugo ,  Tadatoshi Ogawa ,  Seiichiro Ima ,  Teruaki Yoshida

    IPC分类号： B32B27/32 ,  C09J123/14 ,  C09J123/16 ,  B32B27/00 ,  C09J7/02

    CPC分类号： C09J123/142 ,  B32B27/32 ,  C09J123/16 ,  Y10S428/91 ,  Y10T428/2826 ,  Y10T428/31913

    摘要： A polypropylene multi-layer film which comprises a crystalline polypropylene substrate layer having laminated to at least one side thereof a sheet of a resin composition comprising:(A) 10-90% by weight of a propylene random copolymer satisfying that(i) the comonomer content is 4-15% by weight,(ii) the Vicat softening point is 122.degree. C. or less, and(iii) the cold xylene-soluble portion content is 15% by weight or less,(B) 10-90% by weight of a copolymer of propylene and an .alpha.-olefin having four or more carbon atoms or a copolymer of propylene, an .alpha.-olefin having four or more carbon atoms and ethylene satisfying that:(i) the content of the .alpha.-olefin having four or more carbon atoms is 8-35 mole %,(ii) the ethylene content is 5 mole % or less,(iii) the cold xylene-soluble portion content is 15-70% by weight, and(iv) the .DELTA.haze is 5% or less, and(C) 0-15% by weight of a highly crystalline polypropylene having a melting point of 150.degree. C. or more. This polypropylene multi-layer film has an excellent, low-temperature heat sealing property, a good transparency, a good scratch resistance, and so on.

    摘要翻译： 一种聚丙烯多层膜，其包含结晶聚丙烯基材层，该结晶聚丙烯基材层至少在其一面层叠有一片树脂组合物，所述树脂组合物包含：（A）10-90重量％的丙烯无规共聚物，其满足（i）共聚单体 含量为4〜15重量％，（ii）维卡软化点为122℃以下，（iii）冷二甲苯可溶部分含量为15重量％以下，（B）10-90重量％ 的丙烯与具有四个或更多个碳原子的α-烯烃的共聚物或丙烯，具有四个或更多个碳原子的α-烯烃和乙烯的共聚物，其满足以下条件：（i）所述α-烯烃的含量为 四个或更多个碳原子为8-35摩尔％，（ii）乙烯含量为5摩尔％以下，（iii）冷二甲苯可溶部分含量为15-70重量％，（iv）DELTA雾度 为5％以下，（C）0-15重量％的熔点为150℃以上的高结晶性聚丙烯。 该聚丙烯多层膜具有优异的低温热封性，良好的透明性，良好的耐擦伤性等。

    Foamed particles of propylene-type polymer
    8.
    发明授权
    Foamed particles of propylene-type polymer 失效
    丙烯型聚合物发泡颗粒

    公开(公告)号：US4766157A

    公开(公告)日：1988-08-23

    申请号：US942043

    申请日：1986-12-16

    申请人： Hideaki Yamada ,  Satoru Hosoda ,  Tadatoshi Ogawa

    发明人： Hideaki Yamada ,  Satoru Hosoda ,  Tadatoshi Ogawa

    IPC分类号： C08J9/16 ,  C08J9/18 ,  C08J9/228 ,  C08J9/22

    CPC分类号： C08J9/228 ,  C08J2323/10

    摘要： Foamed particles of propylene-type polymer of substantially non-crosslinked type, wherein the propylene-type polymer particles have a Melt Index of from 0.1 to 20, said polymer is at least one member selected from the group consisting of:(a) a soft polypropylene homopolymer having an partial rate of a stereoregular pentad partial rate by .sup.13 C-NMR Spectrum of from 45 to 85% and a fusion heat quantity of from 5 to 22 cal/g; and(b) a random copolymer of propylene and an .alpha.-olefin having a carbon number of 4 or more, or a random copolymer of propylene, an .alpha.-olefin having a carbon number of 4 or more, and ethylene, in which the content of the .alpha.-olefin having a carbon number of 4 or more is from 7 to 30 mol %, the content of ethylene is 5 mol % or less, and the cold xylene-soluble matter of said copolymer is from 15 to 60 wt %, said polymer particles being foamed with the use of an evaporation type blowing agent.

    摘要翻译： 基本上非交联型的丙烯类聚合物的发泡颗粒，其中丙烯类聚合物颗粒的熔体指数为0.1-20，所述聚合物是选自以下的至少一种：（a）软 聚丙烯均聚物，其通过13C-NMR具有立体有规五重分布部分速率的部分速率为45〜85％，熔融热量为5〜22cal / g; 和（b）丙烯与碳数为4以上的α-烯烃或碳原子数为4以上的丙烯，α-烯烃的无规共聚物和乙烯的无规共聚物，其中含量 的碳原子数为4以上的α-烯烃为7〜30摩尔％，乙烯的含量为5摩尔％以下，所述共聚物的冷二甲苯可溶性物质为15〜60重量％ 所述聚合物颗粒通过使用蒸发型发泡剂发泡。

    Packaging propylene copolymer film
    9.
    发明授权
    Packaging propylene copolymer film 失效
    包装丙烯共聚物膜

    公开(公告)号：US4761462A

    公开(公告)日：1988-08-02

    申请号：US814884

    申请日：1985-12-30

    申请人： Shuji Kitamura ,  Kiyohiko Nakae ,  Tadatoshi Ogawa ,  Teruaki Yoshida ,  Hajime Sadatoshi

    发明人： Shuji Kitamura ,  Kiyohiko Nakae ,  Tadatoshi Ogawa ,  Teruaki Yoshida ,  Hajime Sadatoshi

    IPC分类号： C08F210/06 ,  C08F210/16 ,  C08J5/18 ,  C08F210/08

    CPC分类号： C08J5/18 ,  C08F210/06 ,  C08F210/16 ,  C08J2323/14 ,  Y10S526/904 ,  Y10S526/916

    摘要： A packaging transparent propylene copolymer film stretched in at least one direction, which consists of a copolymer of propylene and an .alpha.-olefin having 4 or more carbon atoms or a copolymer of propylene, an .alpha.-olefin having 4 or more carbon atoms and ethylene. The copolymer satisfies the following conditions;(1) the content of the .alpha.-olefin having 4 or more carbon atoms in the copolymer is 8-25 mole %,(2) the content of ethylene in the copolymer is 5 mole % or less,(3) the content of a cold xylene-soluble portion in the copolymer is 15-50% by weight, and(4) the flexural modulus of the copolymer is 2,500-7,000 kg/cm.sup.2.

    摘要翻译： 由至少一个方向拉伸的包装透明丙烯共聚物膜，其由丙烯和具有4个或更多个碳原子的α-烯烃的共聚物或丙烯，具有4个或更多个碳原子的α-烯烃和乙烯的共聚物组成。 共聚物满足下列条件： （1）共聚物中具有4个以上碳原子的α-烯烃的含量为8〜25摩尔％，（2）共聚物中的乙烯含量为5摩尔％以下，（3）a 共聚物中的冷二甲苯可溶部分为15〜50重量％，（4）共聚物的挠曲模量为2,500-7,000kg / cm 2。