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:
Dec. 26, 2017
Filed:
Oct. 01, 2013
Kaneka Corporation, Osaka-shi, JP;
Tetsuo Okura, Settsu, JP;
Ryohei Koyama, Settsu, JP;
KANEKA CORPORATION, Osaka-shi, JP;
Abstract
A resin composition for producing a film or sheet having high tear strength that is excellent in processability, mechanical properties, and biodegradability. The resin composition is a biodegradable polyester resin composition containing: (i) an aliphatic polyester (P3HA) having a repeating unit of formula (1): [—CHR—CH—CO—O—] (1), wherein R is an alkyl group represented by CH, where n is an integer of 1 or more and 15 or less; (ii) polybutylene adipate terephthalate (PBAT); and hydrophilic silica (A), wherein a weight ratio of the aliphatic polyester (P3HA) to the polybutylene adipate terephthalate (PBAT) is 90/10 to 10/90, and an amount of the hydrophilic silica (A) is 2 to 30 parts by weight with respect to 100 parts by weight of a total amount of the aliphatic polyester (P3HA) and the polybutylene adipate terephthalate (PBAT) combined.