The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 30, 1999
Filed:
Sep. 26, 1997
Kunihiko Asai, Kanagawa, JP;
Tomio Takada, Kanagawa, JP;
Hideo Yamamoto, Kanagawa, JP;
Kunio Yamamoto, Kanagawa, JP;
Yoshihisa Saiki, Saitama, JP;
Takeshi Ogawa, Saitama, JP;
Japan Polyolefins Co., Ltd., Tokyo, JP;
Honda Giken Kogyo Kabushiki Kaisha, Tokyo, JP;
Abstract
A resin composition comprising: (A) a polypropylene polymer comprising a propylene/ethylene block copolymer, said polypropylene polymer having a melt flow rate of from 5 to 100 g/10 min as measured at 230.degree. C. under a load of 2.16 kg and containing components extractable with xylene at 20.degree. C., wherein the xylene-extractable components having an intrinsic viscosity as measured at 140.degree. C. in decalin of from 2.0 to 5.0 g/dl; (B) an ethylene/propylene rubber having a propylene content of from 40 to 60% by weight and a melt flow rate of from 0.5 to 10 g/10 min as measured at 230.degree. C. under a load of 2.16 kg; (C) a triblock copolymer having a melt flow rate of from more than 40 to 200 g/10 min as measured at 230.degree. C. under a load of 2.16 kg, a flat interface between said triblock copolymer and the 100.degree. C. xylene-insoluble components of said polypropylene polymer of ingredient (A) having a critical energy release rate of 20 J/m.sup.2 or higher as measured at a phase angle of from -2.degree. to -12.degree.; (D) a modified polyolefin polymer having a hydroxy group, said modified polyolefin polymer having a content of a hydroxy-containing unsaturated compound of from 0.5 to 7.0% by weight; (E) an oligomer having at least one terminal polar group, said oligomer having a number-average molecular weight of from 300 to 10,000; and (F) talc having an average particle diameter of 5 .mu.m or smaller.