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:
Jan. 18, 2000
Filed:
Nov. 12, 1997
Yoshihiro Sobajima, Yokkaichi, JP;
Masashi Shimouse, Yokkaichi, JP;
Masahide Hamaura, Yokkaichi, JP;
Akira Yamaji, Yokkaichi, JP;
Japan Polychem Corporation, Tokyo-to, JP;
Abstract
A propylene resin composition having excellent physical property balance (heat resistance and impact strength at low temperature), and excellent injection molding processability as well as excellent paintability is provided, which propylene resin composition comprises component (a): a propylene-ethylene block copolymer comprising 85-95% by weight of a crystalline polypropylene homopolymer portion (unit A) and 5-15% by weight of an ethylene-propylene random copolymer portion (unit B) having an ethylene content of 30-60% by weight, the melt flow rate of the total component (a) being 50-500 g/10 min in an amount of 100 parts by weight, component (b): talc having an average particle diameter of 1.5-10 .mu.m and an average aspect ratio of 4 or more in an amount of 10-60 parts by weight, and component (c): an ethylene-1-octene copolymer comprising 20-50% by weight of 1-octene, and having a density of 0.86-0.89 g/cm.sup.3 and a tensile strength at break of 10 MPa or more in an amount of 10-60 parts by weight.