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:
Sep. 15, 2020
Filed:
Jan. 20, 2014
Toyo Seikan Group Holdings, Ltd., Tokyo, JP;
Toyo Seikan Group Holdings, Ltd., Tokyo, JP;
Abstract
An oxygen-absorbing film having an oxygen-absorbing adhesive agent layer comprising an oxygen-absorbing adhesive agent resin composition, wherein the oxygen-absorbing adhesive agent layer has at least two glass transition temperatures, and wherein the lowest glass transition temperature among the glass transition temperatures is lower than 0° C. The oxygen-absorbing adhesive agent resin composition preferably comprises: (A) an oxygen-absorbing polyester resin having a glass transition temperature of −20 to 10° C. made from a tetrahydrophthalic acid, a derivative thereof, a tetrahydrophthalic anhydride, or a derivative thereof, and (B) a saturated polyester resin having a glass transition temperature of −10° C. or lower that is a polyester resin containing substantially no carbon-carbon double bond group, and can be obtained by, for example, polycondensation of a dicarboxylic acid component, a diol component, and a hydroxycarboxylic acid component.