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. 29, 2012
Filed:
Apr. 14, 2009
Kenji Sogoh, Sodegaura, JP;
Katsuhiro Yamada, Chiba, JP;
Hisakatsu Hama, Ichihara, JP;
Masaaki Tsutsubuchi, Chiba, JP;
Kenji Sogoh, Sodegaura, JP;
Katsuhiro Yamada, Chiba, JP;
Hisakatsu Hama, Ichihara, JP;
Masaaki Tsutsubuchi, Chiba, JP;
Sumitomo Chemical Company, Limited, Tokyo, JP;
Abstract
A resin composition, comprising (a) 50 to 99% by weight of a crystalline polypropylene resin, and (b) 1 to 50% by weight of a propylene copolymer comprising 50 to 85% by mol of a propylene unit and 15 to 50% by mol of a Cα-olefin unit, the propylene copolymer having (1) no meting point in a range of −100 to 200° C., or a melting point of 50° C. or lower in that temperature range, (2) an isotactic selectivity of 90% or higher, (3) a molecular weight distribution of 3 or smaller, and (4) an intrinsic viscosity of 0.1 to 10 dl/g.