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    Molded polypropylene
    4.
    发明授权
    Molded polypropylene 有权
    模压聚丙烯

    公开(公告)号：US06429262B1

    公开(公告)日：2002-08-06

    申请号：US09674701

    申请日：2000-11-06

    申请人： Shinichi Akitaya ,  Takanori Nakashima ,  Hitoshi Kuramochi ,  Yoshitaka Sumi

    发明人： Shinichi Akitaya ,  Takanori Nakashima ,  Hitoshi Kuramochi ,  Yoshitaka Sumi

    IPC分类号： C08L2310

    CPC分类号： C08L23/10 ,  C08L23/12 ,  C08L23/14 ,  C08L2201/12 ,  C08L2205/02 ,  C08L2666/04

    摘要： A molded polypropylene having an excellent balance among various material properties including impact resistance, transparency, gloss, molding shrinkage, and whitening resistance. The molding is constituted of a material comprising a resin composition comprising 10 to 60% by weight crystalline polypropylene (matrix) and 90 to 40% by weight propylene/&agr;-olefin copolymer (domains). The copolymer has been dispersed in the crystalline polypropylene to form domains elongated in the direction (MD) in which the resin composition flows during molding. Each domain is connected to one or more other domains at least at one site (connecting chain).

    摘要翻译： 在耐冲击性，透明性，光泽度，成型收缩率和耐白化性等各种材料性能之间具有优异平衡性的成型聚丙烯。 模制品由包括10至60重量％结晶聚丙烯（基体）和90至40重量％丙烯/α-烯烃共聚物（畴）的树脂组合物的材料构成。 共聚物已经分散在结晶聚丙烯中以形成在模塑过程中树脂组合物流动的方向（MD）伸长的畴。 每个域至少在一个站点（连接链）连接到一个或多个其他域。

    Propylene resin composition
    5.
    发明授权
    Propylene resin composition 有权
    丙烯树脂组合物

    公开(公告)号：US06716921B1

    公开(公告)日：2004-04-06

    申请号：US10070354

    申请日：2002-03-06

    申请人： Takanori Nakashima ,  Shinichi Akitaya ,  Yuya Ishimoto ,  Yasuhiro Mochizuki ,  Yoshitaka Morimoto ,  Yoshitaka Sumi

    发明人： Takanori Nakashima ,  Shinichi Akitaya ,  Yuya Ishimoto ,  Yasuhiro Mochizuki ,  Yoshitaka Morimoto ,  Yoshitaka Sumi

    IPC分类号： C08L2300

    CPC分类号： C08L23/142 ,  C08L23/10 ,  C08L23/14 ,  C08L2205/02 ,  C08L2666/04 ,  C08L2666/06

    摘要： A propylene resin composition is constructed so as to contain (A) a propylene-&agr;-olefin random copolymer with the content of a propylene unit of 99.1 to 99.9% by weight, and (B) a propylene-&agr;-olefin random copolymer with the content of a propylene unit of 70 to 90% by weight, in the specified proportion, and to have the specified loss tangent (tan &dgr;) and storage elastic modulus (E′), in the temperature dependence of dynamic viscoelasticity. Thereby, the propylene resin composition is provided, suitable as a raw material for shaped article having a well-balanced combination of transparency, stress-whitening resistance; impact resistance at low temperatures, and further heat resistance.

    摘要翻译： 构成丙烯类树脂组合物，其含有（A）丙烯单元含量为99.1〜99.9重量％的丙烯-α-烯烃无规共聚物，（B）丙烯-α-烯烃无规共聚物与 在规定比例下，丙烯单元的含量为70〜90重量％，在动态粘弹性的温度依赖性中具有指定的损耗角正切（tanδ）和储能弹性模量（E'）。 因此，提供了丙烯树脂组合物，其适合作为成型制品的原料，其具有透明性，耐应力增白性的良好平衡的组合; 低温下的耐冲击性和耐热性。

    Propylene block copolymer compositions
    6.
    发明授权
    Propylene block copolymer compositions 有权
    丙烯嵌段共聚物组合物

    公开(公告)号：US06355736B1

    公开(公告)日：2002-03-12

    申请号：US09693996

    申请日：2000-10-23

    申请人： Takanori Nakashima ,  Shinichi Akitaya ,  Yoshitaka Morimoto ,  Yoshitaka Sumi

    发明人： Takanori Nakashima ,  Shinichi Akitaya ,  Yoshitaka Morimoto ,  Yoshitaka Sumi

    IPC分类号： C08L2316

    CPC分类号： C08L53/00 ,  C08F210/06 ,  C08F297/08 ,  C08L2666/02 ,  C08L2666/04 ,  C08F210/16 ,  C08F2500/17

    摘要： A propylene block copolymer composition is disclosed which comprises (A) a propylene-&agr;-olefin random copolymer with a propylene content of 99.4 to 99.9 mol % and (B) a propylene-&agr;-olefin random copolymer with a propylene content of 35 to 60 mol %, &agr;-olefin contained in the random copolymer (A) being ethylene and/or 1-butene, wherein the intrinsic viscosity ([&eegr;B]) of the propylene-&agr;-olefin random copolymer (B) ranges from 0.5 to 2.0 dl/g, the ratio ([&eegr;B]/[&eegr;A]) of the intrinsic viscosity ([&eegr;B]) of the propylene-&agr;-olefin random copolymer (B) to the intrinsic viscosity ([&eegr;A]) of the propylene-&agr;-olefin random copolymer (A) ranges from 0.3 to 1.2 and the product (([&eegr;B]/[&eegr;A])×(WA/WB)) of the intrinsic viscosity ratio ([&eegr;B]/[&eegr;A]) and the weight ratio (WA/WB) of both copolymers ranges from 1.0 to 3.0. The propylene block copolymer composition is suitable as a raw material for molded article having excellent see-through property, transparency, stress-whitening resistance, stiffness and heat resistance.

    摘要翻译： 公开了一种丙烯嵌段共聚物组合物，其包含（A）丙烯含量为99.4至99.9摩尔％的丙烯-α-烯烃无规共聚物和（B）丙烯含量为35至60的丙烯-α-烯烃无规共聚物 摩尔％，无规共聚物（A）中所含的α-烯烃为乙烯和/或1-丁烯，其中丙烯-α-烯烃无规共聚物（B）的特性粘度（η）为0.5-2.0dl 丙烯-α-烯烃无规共聚物（B）的特性粘度（η）与丙烯-α-烯烃无规共聚物（B）的特性粘度（[η]）的比值（η/η） 烯烃无规共聚物（A）的范围为0.3至1.2，特性粘度比（η/η[η]）和重量比（（η[η] 两种共聚物的WA / WB为1.0〜3.0。 丙烯嵌段共聚物组合物适合作为具有优异的透明性，透明性，耐应力增白性，刚性和耐热性的模制品的原料。

    Propylene polymer blends, processes of producing the same and polypropylene resin compositions
    7.
    发明授权
    Propylene polymer blends, processes of producing the same and polypropylene resin compositions 失效
    丙烯聚合物共混物，其制备方法和聚丙烯树脂组合物

    公开(公告)号：US06319991B1

    公开(公告)日：2001-11-20

    申请号：US09081678

    申请日：1998-05-20

    申请人： Chikashi Okayama ,  Takanori Nakashima ,  Shinichi Akitaya ,  Yoshitaka Sumi

    发明人： Chikashi Okayama ,  Takanori Nakashima ,  Shinichi Akitaya ,  Yoshitaka Sumi

    IPC分类号： C08L2314

    CPC分类号： C08L23/142 ,  B01J2219/182 ,  C08L23/14 ,  C08L23/16 ,  C08L2205/02 ,  C08L2308/00 ,  C08L2666/06

    摘要： A propylene polymer blend is disclosed which comprises (A) a propylene-&agr;-olefin random copolymer with a propylene content of 90 to 99% by weight and (B) a propylene-&agr;-olefin random copolymer with a propylene content of 55 to 90% by weight, wherein the intrinsic viscosity ([&eegr;B]) of the copolymer B ranges from 1.3 to 3.5 dl/g, the ratio ([&eegr;B]/[&eegr;A]) of the intrinsic viscosity ([&eegr;B]) of the copolymer B to the intrinsic viscosity ([&eegr;A]) of the copolymer A ranges from 0.5 to 1.3 and a product (([&eegr;B]/[&eegr;A])×(WA/WB)) of the intrinsic ratio ([&eegr;B]/[&eegr;A]) of both copolymers and the weight ratio (WA/WB) of both copolymers ranges from 1.0 to 4.5. A polypropylene resin composition comprises 99 to 99.9999% by weight of the propylene polymer blend and 1 to 0.0001% by weight of an &agr;-crystal nucleating agent.

    摘要翻译： 公开了一种丙烯聚合物共混物，其包含（A）丙烯含量为90至99重量％的丙烯-α-烯烃无规共聚物和（B）丙烯含量为55至90的丙烯-α-烯烃无规共聚物 重量％，其中共聚物B的特性粘度（η）为1.3-3.5dl / g，共聚物B的特性粘度（η）的比值（ηetaA）为 相对于共聚物A的特性粘度（η）为0.5-1.3，产物（（[ηa/ [ηa]）x（WA / WB））的固有比（[ηa] / [η] ）和两种共聚物的重量比（WA / WB）为1.0至4.5。 聚丙烯树脂组合物包含99至99.9999重量％的丙烯聚合物共混物和1至0.0001重量％的α-晶体成核剂。

    Unoriented polypropylene molding
    8.
    发明授权
    Unoriented polypropylene molding 有权
    无取向聚丙烯成型

    公开(公告)号：US06258893B1

    公开(公告)日：2001-07-10

    申请号：US09424001

    申请日：1999-11-15

    申请人： Chikashi Okayama ,  Takanori Nakashima ,  Yuya Ishimoto ,  Shinji Nakata ,  Yasuhiro Mochizuki ,  Shinichi Akitaya ,  Yoshitaka Sumi

    发明人： Chikashi Okayama ,  Takanori Nakashima ,  Yuya Ishimoto ,  Shinji Nakata ,  Yasuhiro Mochizuki ,  Shinichi Akitaya ,  Yoshitaka Sumi

    IPC分类号： C08I800

    CPC分类号： C08J5/18 ,  C08J2323/10 ,  C08L23/10 ,  C08L23/12 ,  C08L23/16 ,  C08L2666/04

    摘要： An unoriented polypropylene-based film or sheet possessing excellent impact resistance at low temperature, transparency, heat resistance at low temperature and excellent tear strength and/or stress whitening resistance. A molding material which comprises a polypropylene-based resin material comprising 40 to 80% by weight of crystalline polypropylene and 60 to 20% by weight of propylene-&agr;-olefin copolymer containing 20 to 80% by weight of propylene polymerization units, the propylene-&agr;-olefin copolymer dispersed as particles in the crystalline polypropylene, is unoriently molded to afford a film-shaped or sheet-shaped molding, wherein the particle diameter have an aspect ratio (L/D) of mean dispersed particle length (L) to mean dispersed particle diameter along the thickness of the molding (D) of 30 or more in a cross section of the molding along the MD direction, and the mean dispersed particle diameter of 0.3 &mgr;m or less.

    摘要翻译： 在低温下具有优异的耐冲击性，低透明性，耐热性以及优异的撕裂强度和/或耐应力增白性的无取向聚丙烯类膜或片。 一种模塑材料，其包含聚丙烯基树脂材料，其包含40至80重量％的结晶聚丙烯和60至20重量％的含有20至80重量％丙烯聚合单元的丙烯-α-烯烃共聚物， 作为颗粒分散在结晶聚丙烯中的α-烯烃共聚物是无取向成型的，以提供薄膜状或片状模制品，其中粒径具有平均分散粒度长度（L）至平均值的纵横比（L / D） 分散粒径沿成型体（D）的厚度为30以上，沿着MD方向在成形体的截面中，平均分散粒径为0.3μm以下。

    Polypropylene resin composition and gas permeable film using the same
    9.
    发明授权
    Polypropylene resin composition and gas permeable film using the same 有权
    聚丙烯树脂组合物和使用其的透气膜

    公开(公告)号：US06815503B2

    公开(公告)日：2004-11-09

    申请号：US10104303

    申请日：2002-03-20

    申请人： Shinji Nakata ,  Yasuhiro Shiraishi ,  Takanori Nakashima ,  Shinichi Akitaya

    发明人： Shinji Nakata ,  Yasuhiro Shiraishi ,  Takanori Nakashima ,  Shinichi Akitaya

    IPC分类号： C08J518

    CPC分类号： C08L23/10 ,  C08L23/16 ,  C08L2666/04

    摘要： Provided are a novel polypropylene resin composition, a gas permeable film comprising the same and provided with satisfactory optical characteristics (transparency, gloss and see throughness) as well as an excellent gas permeability (water vapor, oxygen and ethylene gas) without damaging a rigidity and a vegetable and fruit freshness long term-maintaining method using the above gas permeable film for a wrapping film. The polypropylene resin composition described above comprises 40 to 95% by weight of a propylene polymer (A) and 5 to 60% by weight of an ethylene/propylene/butene random copolymer (B) having a butene content of 3 to 40% by weight and an ethylene content of 10 to 30% by weight, wherein a ratio (&eegr;B/&eegr;A) of an intrinsic viscosity &eegr;B of the component (B) described above to an intrinsic viscosity &eegr;A of the component (A) described above falls in a range of 0.5 to 1.3; and the &eegr;B described above falls in a range of 0.5 to 3.0 dl/g. The gas permeable film described above is a single layer or multilayer film comprising at least one layer of a film of the polypropylene resin composition described above and having a thickness of 10 to 100 &mgr;m, and it has the following characteristics: (1) a permeability TH2O of water vapor is 9 to 50 g/m2·24 h (based on JIS Z 0208), (2) a permeability TO2 of oxygen is 600 to 12500 nmol/m2·s·100 kPa (based on JIS K 7126-A) and (3) a permeability Tethylene of ethylene gas is 600 to 22500 nmol/m2·s·100 kPa (based on JIS K 7126-A).

    Polypropylene composition
    10.
    发明授权
    Polypropylene composition 有权
    聚丙烯组成

    公开(公告)号：US06323286B1

    公开(公告)日：2001-11-27

    申请号：US09529547

    申请日：2000-04-14

    申请人： Hitoshi Kuramochi ,  Osamu Kojima ,  Yoshitaka Sumi ,  Takanori Nakashima ,  Shinichi Akitaya

    发明人： Hitoshi Kuramochi ,  Osamu Kojima ,  Yoshitaka Sumi ,  Takanori Nakashima ,  Shinichi Akitaya

    IPC分类号： C08F29300

    CPC分类号： C08L53/00 ,  C08L23/0815 ,  C08L23/10 ,  C08L23/14 ,  C08L23/16 ,  C08L25/10 ,  C08L35/06 ,  C08L53/02 ,  C08L53/025 ,  C08L2205/03 ,  C08L2205/035 ,  C08L2666/24 ,  C08L2666/06 ,  C08L2666/02 ,  C08L2666/04

    摘要： The composition of the present invention is not costly, excellent in an emboss transferring property, and is applicable for various skin materials and interior materials. The present invention provides a polypropylene composition which comprises a propylene block copolymer component containing a crystalline polypropylene segment and a propylene/&agr;-olefin copolymer segment, and a synthetic olefin rubber component and/or a synthetic styrene rubber component, wherein the copolymer segment has an intrinsic viscosity [&eegr;]RC of 6.5 dl/g or less, and an intrinsic viscosity ratio [&eegr;]RC/[72 ]PP of the copolymer to the crystalline polypropylene segment is 0.5 to 1.3; and a product of this intrinsic viscosity ratio [&eegr;]RC/[&eegr;]PP and a weight ratio thereof WPP/WRC, ([&eegr;]RC/[&eegr;]PP)×(WPP/WRC), falls in the range of 0.2-4.5; and a ratio of a melt flow rate of the rubber component to a melt flow rate of the crystalline polypropylene segment, [MFR]TR/[MFR]PP, is 0.3-80.

    摘要翻译： 本发明的组合物不是昂贵的，具有优异的压花转印性能，并且适用于各种表皮材料和内部材料。本发明提供一种聚丙烯组合物，其包含含有结晶聚丙烯链段和丙烯的丙烯嵌段共聚物组分 /α-烯烃共聚物链段和合成烯烃橡胶组分和/或合成苯乙烯橡胶组分，其中共聚物链段的特性粘度ηRC为6.5dl / g以下，特性粘度比η 共聚物的RC / [72] PP结晶聚丙烯链段为0.5〜1.3; 并且该特性粘度比ηRC /ηPP及其WPP / WRC，（ηRC /ηPP）×（WPP / WRC）的重量比的乘积在0.2 -4.5; 并且橡胶组分的熔体流动速率与结晶聚丙烯链段的熔体流动速率之比[MFR] TR / [MFR] PP为0.3-80。