Title:
熱可塑性樹脂組成物及びその射出成形体
Document Type and Number:
Japanese Patent JP4344421
Kind Code:
B2
Abstract:
A thermoplastic composition which is obtained by melt-kneading (1) 55 to 75 wt.% crystalline polypropylene resin together with (2) 10 to 30 wt.% elastomer comprising either a rubber containing a vinylaromatic compound or a mixture thereof with an ethylene/ alpha -olefin random copolymer rubber and (3) 15 to 25 wt.% talc having an average particle diameter of 3 mu m or smaller. The composition satisfies specific requirements with respect to: the long period obtained by X-ray small-angle scattering attributable to the vinylaromatic-containing rubber in a blend obtained by melt-kneading the ingredients (1) and (2); the shape and diameter of the elastomer particles present near the polypropylene/elastomer interface in the blend; and the difference between the glass transition point of the ingredient (1) and that of the composition attributable to the crystalline polypropylene homopolymer parts. The composition has a satisfactory balance between impact resistance and rigidity and has excellent injection moldability.
Inventors:
Shimojo Moriyasu
Kenichi Okawa
Susumu Kanzaki
Takayuki Nagai
Takao Nomura
Masatoshi Matsuda
Hisayuki Iwai
Kenichi Okawa
Susumu Kanzaki
Takayuki Nagai
Takao Nomura
Masatoshi Matsuda
Hisayuki Iwai
Application Number:
JP11800199A
Publication Date:
October 14, 2009
Filing Date:
April 26, 1999
Export Citation:
Assignee:
Sumitomo Chemical Co., Ltd.
TOYOTA JIDOSHA KABUSHIKI KAISHA
TOYOTA JIDOSHA KABUSHIKI KAISHA
International Classes:
C08J5/00; C08L23/10; B29C45/00; C08K3/34; C08L53/00; C08L23/08; C08L23/16; C08L25/00; C08L53/02
Domestic Patent References:
| JP10195264A | ||||
| JP7252389A | ||||
| JP63057653A |
Attorney, Agent or Firm:
Toru Nakayama
Toru Sakamoto
Toru Sakamoto