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.:

US 8293373 B1

PDF
Full Text
Expired
Date of Patent:
Oct. 23, 2012

Filed:

Feb. 15, 2008
Applicants:

Shizuo Kitahara, Saitama, JP;

Jun Ishihara, Tokyo, JP;

Inventors:

Shizuo Kitahara, Saitama, JP;

Jun Ishihara, Tokyo, JP;

Assignee:

Zeon Corporation, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29D 22/00 (2006.01); B32B 5/16 (2006.01); C08L 67/00 (2006.01); C08L 77/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

[PROBLEMS] To provide: an oxygen-absorbing resin composition which needs no transition metal compound, exhibits excellent oxygen absorbability at room temperature, produces little unpleasant odor during the absorption of oxygen, and enables to produce a molded article having excellent transparency; an oxygen-absorbing molded article comprising the oxygen-absorbing resin composition; and a packaging material and a packaging container each comprising the molded article. [MEANS FOR SOLVING PROBLEMS] Disclosed is an oxygen-absorbing resin composition comprising: a resin composition (A) which comprises an oxygen-absorbing resin (A1) having a cycloene structure in the molecule and a softening agent (A2) and has a glass transition temperature of −30 to +30° C.; and a resin (B) having an oxygen permeability of 100 to 500 cc 20 μm/mday atm (25° C., 65% RH), wherein the resin composition (A) is dispersed in the resin (B). The softening agent (A2) is preferably liquid paraffin or polybutene. The resin (B) is preferably a (terephthalic acid)/(cyclohexanedimethanol) copolymer polyester or a polyamide resin.


Find Patent Forward Citations

Kitahara, Shizuo. (2012). Oxygen-absorbing resin composition, oxygen-absorbing shaped article, packaging material and packaging container (U.S. Patent No. 8293373). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8293373

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