公开(公告)号：US5141994A

公开(公告)日：1992-08-25

申请号：US432443

申请日：1989-11-06

申请人： Masahiro Kakugo ,  Hajime Sadatoshi ,  Jiro Sakai ,  Kazuki Wakamatsu ,  Kazuhiro Chikaishi ,  Toshiro Kojima ,  Hideo Nomura ,  Tomohisa Fukao

发明人： Masahiro Kakugo ,  Hajime Sadatoshi ,  Jiro Sakai ,  Kazuki Wakamatsu ,  Kazuhiro Chikaishi ,  Toshiro Kojima ,  Hideo Nomura ,  Tomohisa Fukao

IPC分类号： C08F297/08 ,  C08L23/10 ,  C08L23/14

CPC分类号： C08L23/142 ,  C08F297/08 ,  C08F297/086 ,  C08L23/10 ,  C08L2205/02 ,  C08L2308/00

摘要： Crystalline polypropylene excellent in rigidity, heat resistance and surface hardness is disclosed, having a ratio of weight average molecular weight (Mw) to number average molecular weight (Mn) (Mw/Mn) of 10 or more, an intrinsic viscosity [.eta.] of from 0.8 to 5.0 dl/g as measured in tetralin at 135.degree. C., a cold xylene-soluble content (CXS) of not more than 4% by weight, a density (d) of 0.910 g/cm.sup.3 or more as measured at 23.degree. C., and a long period (L) (.ANG.) as measured at 25.degree. C. by a small-angle X-ray scattering method satisfying relationship:L.ltoreq.LC=6667d-5894wherein d is a density at 23.degree. C.; and Lc is a value (.ANG.) obrained by equation:Lc=6667d-5894.A crystalline polypropylene composition containing the foregoing crystalline polypropylene, which is excellent in rigidity and heat resistance, is also disclosed.

公开(公告)号：US4883842A

公开(公告)日：1989-11-28

申请号：US172786

申请日：1988-03-28

申请人： Shigeo Tanaka ,  Jiro Sakai ,  Tomohisa Fukao ,  Kizuku Wakatsuki ,  Kazuki Wakamatsu

发明人： Shigeo Tanaka ,  Jiro Sakai ,  Tomohisa Fukao ,  Kizuku Wakatsuki ,  Kazuki Wakamatsu

IPC分类号： C08L23/02 ,  C08L23/24 ,  C09K9/02

CPC分类号： C09K9/02 ,  C08L23/02 ,  C08L23/24

摘要： There is disclosed resin composition comprising 1 to 99% by weight of a polymer A and 1 to 99% by weight of a polymer B, the polymer A and B having refractive indexes which permit satisfaction of the relation:a.ltoreq.0.015 and b-a.gtoreq.0.005wherein a and b are the minimum and the maximum, respectively, of absolute value of the difference between the refractive indexes of the polymers A and B in the temperature range of 20.degree. to 100.degree. C.; said composition being useful as a functional resin for buildings, etc.

公开(公告)号：US06656987B2

公开(公告)日：2003-12-02

申请号：US09989488

申请日：2001-11-21

申请人： Isao Takashima ,  Kenichi Ohkawa ,  Tomohisa Fukao

发明人： Isao Takashima ,  Kenichi Ohkawa ,  Tomohisa Fukao

IPC分类号： C08K552

CPC分类号： C08K3/34 ,  C08K5/521 ,  C08L23/12 ,  Y10T428/31913

摘要： A polypropylene resin composition which comprises 100 parts by weight of a propylene homopolymer, 0.01 to 1.0 part by weight of phosphoric acid ester type nucleating agent (a) and 1.5 to 5 parts by weight of talc (b), wherein the composition satisfies the following condition (1): (1) the injection molded article of the polypropylene resin composition has degrees of orientation A and orientation B measured by wide angle X-ray diffraction of not less than 35 and not less than 300, respectively.

摘要翻译： 一种聚丙烯树脂组合物，其包含100重量份的丙烯均聚物，0.01至1.0重量份的磷酸酯型成核剂（a）和1.5至5重量份的滑石（b），其中所述组合物满足以下 条件（1）:( 1）聚丙烯树脂组合物的注塑成型体的取向度A和通过广角X射线衍射测定的取向B分别为35以上且300以下。