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16 条记录 (耗时 0.032 秒)

    Packaging propylene copolymer film
    2.
    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。

    Laminated polypropylene film
    3.
    发明授权
    Laminated polypropylene film 失效
    层压聚丙烯薄膜

    公开(公告)号：US4675247A

    公开(公告)日：1987-06-23

    申请号：US685537

    申请日：1984-12-24

    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： C08F4/00 ,  B32B27/32 ,  C08F4/60 ,  C08F4/64 ,  C08F210/00 ,  C08F210/16 ,  B32B27/00

    CPC分类号： B32B27/32 ,  Y10T428/2826 ,  Y10T428/31855 ,  Y10T428/31913

    摘要： A laminated polypropylene film consisting of a crystalline polypropylene layer having laminated to at least one side thereof a copolymer layer, said copolymer being a random copolymer of propylene and an .alpha.-olefin having 4 or more carbon atoms or a random copolymer of propylene, an .alpha.-olefin having 4 or more carbon atoms and ethylene obtained by vapor phase polymerization in the substantial absence of a liquid medium and satisfying the following conditions (1) to (4):(1) the content of an .alpha.-olefin having 4 or more carbon atoms in the copolymer is 8 to 25 mole %,(2) the content of ethylene in the copolymer is 3 mole % or less,(3) the content of a cold xylene-soluble portion in the copolymer is 15 to 60% by weight, and(4) the content of a boiling n-heptane-insoluble portion in the copolymer is 7% by weight or more. Said laminated film has an excellent low-temperature heat-sealability, an excellent transparency, a low blocking and a good scratch resistance.

    摘要翻译： 由结晶聚丙烯层构成的层压聚丙烯膜，其至少在其一侧层叠有共聚物层，所述共聚物是丙烯与具有4个或更多个碳原子的α-烯烃的无规共聚物或丙烯的无规共聚物，α 基本上不存在液体介质，通过气相聚合获得的满足以下条件（1）至（4）的乙烯：具有4个或更多个碳原子的α-烯烃和乙烯;（1）具有4个或更多个碳原子的α-烯烃的含量 共聚物中的碳原子数为8〜25摩尔％，（2）共聚物中的乙烯含量为3摩尔％以下，（3）共聚物中的冷二甲苯可溶部分的含量为15〜60％ 重量，（4）共聚物中沸腾的正庚烷不溶部分的含量为7重量％以上。 所述层压膜具有优异的低温热封性，优异的透明性，低阻挡性和良好的耐擦伤性。

    Packaging shrink film
    4.
    发明授权
    Packaging shrink film 失效
    包装收缩膜

    公开(公告)号：US4670529A

    公开(公告)日：1987-06-02

    申请号：US679867

    申请日：1984-12-10

    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： B29C55/00 ,  B29C55/12 ,  B29C61/00 ,  B29C61/06 ,  B29K23/00 ,  B29K105/02 ,  B29L7/00 ,  C08J5/18 ,  C08L23/10 ,  C08L23/16 ,  C08L23/18 ,  C08F10/00

    CPC分类号： C08J5/18 ,  B29C61/003 ,  B29K2023/00 ,  B29K2995/0022 ,  B29K2995/0026 ,  C08J2323/16 ,  Y10T428/31913

    摘要： A packaging shrink film consisting essentially of a random copolymer of propylene and an .alpha.-olefin having 4 or more carbon atoms or a random copolymer of propylene, an .alpha.-olefin having 4 or more carbon atoms and ethylene, said random copolymer satisfying the following conditions:(1) the content of an .alpha.-olefin having 4 or more carbon atoms in the copolymer is 8 to 30 mole %,(2) the content of ethylene in the copolymer is 3 mole % or less,(3) the content of a cold xylene-soluble portion in the copolymer is 15 to 60% by weight, and(4) the content of a boiling n-heptane-insoluble portion in the copolymer is 7% by weight or more, said film having been stretched. The packaging shrink film is soft and excels in low-temperature shrink characteristics as well as in transparency and gloss.

    摘要翻译： 主要由丙烯和具有4个或更多个碳原子的α-烯烃的无规共聚物或丙烯，具有4个或更多个碳原子的α-烯烃和乙烯的无规共聚物组成的包装收缩膜，所述无规共聚物满足以下条件 （1）共聚物中具有4个以上碳原子的α-烯烃的含量为8〜30摩尔％，（2）共聚物中的乙烯含量为3摩尔％以下，（3） 共聚物中的冷二甲苯可溶部分为15〜60重量％，（4）共聚物中沸腾的正庚烷不溶部分的含量为7重量％以上，所述膜被拉伸。 包装收缩膜柔软，低温收缩特性以及透明度和光泽度优异。

    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。