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:
May. 06, 2008
Filed:
Sep. 24, 2004
Tsuyoshi Watanabe, Ichihara, JP;
Tsuyoshi Watanabe, Ichihara, JP;
Sumitomo Chemical Company Limited, Tokyo, JP;
Abstract
Disclosed is a polypropylene-based resin composition including: from 60 to 94.9% by weight of propylene-ethylene block copolymer (A) which has a propylene homopolymer portion (A1) in a content of from 60 to 75% by weight and a propylene-ethylene random copolymer portion (A2) in a content of from 25 to 40% by weight or a mixture of the propylene-ethylene block copolymer (A) and 20% by weight or less of propylene homopolymer, from 0.1 to 15% by weight of resin (B) which has a melt tension of 0.03 N or more, a swelling ratio of 1.5 or more and a relaxation time of 5 seconds or more; and from 5 to 25% by weight of inorganic filler (C).