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:
Oct. 29, 2013
Filed:
Feb. 28, 2012
Mitsuo Shibutani, Osaka, JP;
Kazutoshi Tsuji, Osaka, JP;
Kaoru Inoue, Osaka, JP;
Norihito Sakai, Osaka, JP;
Mitsuo Shibutani, Osaka, JP;
Kazutoshi Tsuji, Osaka, JP;
Kaoru Inoue, Osaka, JP;
Norihito Sakai, Osaka, JP;
The Nippon Synthetic Chemical Industry Co., Ltd., Osaka, JP;
Abstract
Disclosed is a polyvinyl alcohol resin composition capable of providing a melt-molded article with superior gas barrier properties and flex crack resistance. The resin composition comprises (A) a PVA resin having 1,2-diol unit in side chain thereof; and (B) a mixture of block copolymers each having an aromatic vinyl polymer block, and a conjugated diene polymer block and/or hydrogenated thereof, wherein the (B) mixture of block copolymers includes (B1) a block copolymer having no carboxyl group and (B2) a block copolymer modified with a carboxyl group-containing compound.