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:
Nov. 17, 2015
Filed:
Oct. 24, 2005
Tetsuya Hisayama, Sodegaura, JP;
Nobuhiro Usui, Ichihara, JP;
Takashi Sanada, Ichihara, JP;
SUMITOMO CHEMICAL COMPANY, LIMITED, Tokyo, JP;
Abstract
Disclosed is a polypropylene resin composition comprising from 50 to 95 wt. % of propylene homopolymer component (A) and from 5 to 50 wt. % of ethylene-α-olefin copolymer component (B1), the polypropylene resin composition having a melt index of not less than 40 g/10 min but less than 500 g/10 min, provided that the percentages by weight are based on the combined weight of the components (A) and (B1), wherein the homopolymer component (A) has an intrinsic viscosity [η]of from 0.5 to 1.4 dl/g, and wherein the ratio of the intrinsic viscosity [η]of the copolymer component (B1) to the intrinsic viscosity [η]of the homopolymer component (A), [η]/[η], is from 0.5 to 3. This composition may be modified by addition of a resin component selected from the group consisting of ethylene homopolymer and aromatic vinyl compound-containing rubber. These components are advantageously used for injection foam molding.