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    Polypropylene multi-layer film
    4.
    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。

    Propylene-ethylene random copolymer film
    5.
    发明授权
    Propylene-ethylene random copolymer film 失效
    丙烯 - 乙烯无规共聚物膜

    公开(公告)号：US6057413A

    公开(公告)日：2000-05-02

    申请号：US706754

    申请日：1996-09-03

    申请人： Seiichiro Ima ,  Kazuki Wakamatsu ,  Shigeki Kishiro

    发明人： Seiichiro Ima ,  Kazuki Wakamatsu ,  Shigeki Kishiro

    IPC分类号： B29C47/00 ,  B29K67/00 ,  B29L7/00 ,  C08F2/34 ,  C08F4/60 ,  C08F4/646 ,  C08F4/654 ,  C08F4/658 ,  C08F10/00 ,  C08F210/06 ,  C08F210/16 ,  C08J5/18 ,  C08F4/649

    CPC分类号： C08J5/18 ,  C08F10/00 ,  C08F210/06 ,  C08F210/16 ,  C08J2323/14

    摘要： A propylene-ethylene random copolymer prepared by copolymerizing propylene with ethylene in the substantial absence of a liquid medium with a catalyst system comprising:(A) a solid catalyst component containing magnesium, titanium, a halogen and a first electron donor as an essential component,(B) an organoaluminum compound and(C) a second electron donor compound, wherein an ethylene content (E) of the copolymer is from 3.5 to 7.0% by weight, and wherein a content of a xylene-soluble portion at 20.degree. C. (D) of the copolymer satisfies the relationship D.ltoreq.E+2.0 (% by weight). Films of the copolymer have an excellent appearance (little bleed whitening) and an excellent balance between low-temperature heat-sealing property and rigidity.

    摘要翻译： 基本上不存在液体介质的丙烯与乙烯共聚制备的丙烯 - 乙烯无规共聚物，催化剂体系包含：（A）含有镁，钛，卤素和第一电子给体作为必要组分的固体催化剂组分， （B）有机铝化合物和（C）第二电子给体化合物，其中共聚物的乙烯含量（E）为3.5〜7.0重量％，其中二甲苯可溶部分的含量为20℃ （D）满足D

    Polypropylene composition and the film thereof
    6.
    发明授权
    Polypropylene composition and the film thereof 失效
    聚丙烯组合物及其膜

    公开(公告)号：US5654372A

    公开(公告)日：1997-08-05

    申请号：US611759

    申请日：1996-03-08

    申请人： Hajime Sadatoshi ,  Seiichiro Ima ,  Kazuki Wakamatsu ,  Jiro Mori ,  Eisuke Shiratani

    发明人： Hajime Sadatoshi ,  Seiichiro Ima ,  Kazuki Wakamatsu ,  Jiro Mori ,  Eisuke Shiratani

    IPC分类号： C08F297/08 ,  C08L53/00

    CPC分类号： C08L53/00 ,  C08F297/083

    摘要： A polypropylene composition comprising a melt-kneaded polyprolylene composition obtained, using Zieglar-Natta catalyst, by polymerizing a monomer comprising propylene to form a polymer comprising polypropylene (component A) in amount of from 60 to 80% by weight to the total polymer amount in substantially the absence of an inert solvent in a 1st step and then polymerizing a mixture of ethylene content of from 20 to 50% by weight (component B) in a vapor phase to form an ethylene-propylene copolymer (component B) in amount of from 20 to 40% by weight to the total polymer amount in a 2nd step, said polypropylene composition being such that the intrinsic viscosity of component B ([.eta.]B) is at least 2.0 dl/g and the ratio ([.eta.]B/[.eta.]A) of the intrinsic viscosity of the component B to the intrinsic viscosity of the component A ([.eta.]A) is 1.8 or less and the melt flow rate of the polypropylene composition after melt-kneaded being 0.5 to 10 g/10 minutes.

    摘要翻译： 一种聚丙烯组合物，其包含使用齐格列酮 - 纳塔催化剂获得的熔融捏合的聚亚甲基组合物，其通过使包含丙烯的单体聚合以形成聚丙烯（组分A）的聚合物，其量为聚合物总量的60至80重量％ 基本上在第一步骤中不存在惰性溶剂，然后在气相中聚合乙烯含量为20至50重量％（组分B）的混合物以形成乙烯 - 丙烯共聚物（组分B），其量为 在第二步中相对于总聚合物量为20至40重量％，所述聚丙烯组合物使得组分B（ηB）的特性粘度为至少2.0dl / g，并且比率（ηB / 组分B的特性粘度与组分A（ηA）的特性粘度之比为1.8以下，熔融混炼后的聚丙烯组合物的熔体流动速率为0.5〜10g / 10分钟。

    Polypropylene film
    8.
    发明授权
    Polypropylene film 失效
    聚丙烯膜

    公开(公告)号：US5726269A

    公开(公告)日：1998-03-10

    申请号：US592705

    申请日：1996-01-26

    申请人： Seiichiro Ima ,  Eisuke Shiratani ,  Shigeki Kishiro

    发明人： Seiichiro Ima ,  Eisuke Shiratani ,  Shigeki Kishiro

    IPC分类号： C08F10/00 ,  C08F10/06 ,  C08F210/06 ,  C08J5/18 ,  C08F110/06

    CPC分类号： C08J5/18 ,  C08F10/06 ,  C08F210/06 ,  C08J2323/10

    摘要： A film having a low dependency of film transparency on film-forming conditions and film thickness, and having superior transparency and rigidity without compromising the original properties of polypropylene film. The film is produced from a polypropylene prepared from a propylene polymer having (1) a stereoirregularity index mmrr/mmmm of a part insoluble in xylene at 20.degree. C. within the range of 0.0095 to 0.0200; (2) a melting temperature within the range of 145.degree. to 160.degree. C.; (3) a part soluble in xylene at 20.degree. C. of 3.5% by weight or less, the polypropylene having: (4) a melt flow rate at 230.degree. C. within the range of 5 to 15 g/10 min.; and (5) a swelling ratio within the range of 1.20 to 1.35.

    摘要翻译： 对薄膜透明性对成膜条件和膜厚度的依赖性低的膜，并且具有优异的透明性和刚性而不损害聚丙烯薄膜的原始性能的薄膜。 该膜由丙烯聚合物制备，该聚丙烯具有（1）在20℃下不溶于二甲苯的部分的立构不规则指数mmrr / mmmm，范围为0.0095至0.0200; （2）熔融温度在145〜160℃的范围内。 （3）在20℃下可溶于二甲苯的部分为3.5重量％以下，聚丙烯具有：（4）在230℃下的熔体流动速率在5〜15g / 10分钟的范围内。 和（5）溶胀比在1.20至1.35的范围内。

    Polypropylene multi-layer film
    10.
    发明授权
    Polypropylene multi-layer film 失效
    聚丙烯多层膜

    公开(公告)号：US4769284A

    公开(公告)日：1988-09-06

    申请号：US854803

    申请日：1986-04-23

    申请人： Masahiro Kakugo ,  Seiichiro Ima ,  Tatsuya Miyatake ,  Hiroyuki Harada

    发明人： Masahiro Kakugo ,  Seiichiro Ima ,  Tatsuya Miyatake ,  Hiroyuki Harada

    IPC分类号： C08L23/00 ,  B32B27/32 ,  C08L7/00 ,  C08L21/00 ,  C08L23/14 ,  C08L23/16 ,  C08L101/00 ,  B32B27/00

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

    摘要： A polypropylene multi-layer film which comprises a substrate layer formed of crystalline polypropylene and a composition laminated on at least one side of said substrate layer, said composition comprising 70 to 95% by weight of (A) a crystalline propylene-ethylene copolymer having an ethylene content of 1.5 to 6.0% by weight and/or a crystalline propylene-.alpha.-olefin copolymer having a propylene content of 80 to 98% by weight, a butene-1 content of 2 to 20% by weight, and an ethylene content of 0 to 5% by weight, and 5 to 30% by weight of (B) a crystalline propylene-butene-1 copolymer which is a copolymer obtained by decomposing a crystalline propylene-butene-1 copolymer having a butene-1 content of 25 to 45% by weight, an intrinsic viscosity of 2.5 dl/g or more as determined in tetralin at 135.degree. C., and a proportion of 35% by weight or more of a polymer component soluble in xylene at 20.degree. C., and containing 1.5% by weight or less of a polymer component having a molecular weight calculated in terms of polystyrene of 10,000 or less as determined by GPC.

    摘要翻译： 一种聚丙烯多层膜，其包含由结晶聚丙烯形成的基材层和层压在所述基材层的至少一侧上的组合物，所述组合物包含70-95重量％的（A）结晶丙烯 - 乙烯共聚物，其具有 乙烯含量为1.5〜6.0重量％，和/或丙烯含量为80〜98重量％，丁烯-1含量为2〜20重量％的结晶性丙烯-α-烯烃共聚物，乙烯含量为 0至5重量％，和5至30重量％的（B）结晶丙烯 - 丁烯-1共聚物，其是通过将丁烯-1含量为25的结晶丙烯 - 丁烯-1共聚物分解得到的共聚物， 45重量％，在135℃下在四氢化萘中测定的特性粘度为2.5dl / g以上，在20℃下可溶于二甲苯的聚合物成分的比例为35重量％以上， 1.5重量％以下的具有分子量的聚合物组分 以GPC测定的聚苯乙烯换算为10,000以下。