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:
Apr. 05, 2016
Filed:
Mar. 11, 2011
Kana Kumamoto, Kanagawa, JP;
Eiichi Honda, Kanagawa, JP;
Kana Kumamoto, Kanagawa, JP;
Eiichi Honda, Kanagawa, JP;
MITSUBISHI GAS CHEMICAL COMPANY, INC., Tokyo, JP;
Abstract
An epoxy resin curing agent which provides good adhesiveness to polyester in addition to excellent performance and high gas-barrier properties of epoxy resins, an epoxy resin composition containing the epoxy resin curing agent, an adhesive for laminating which mainly contains the composition, a laminate film obtained by using the adhesive, a multi-layer packaging material, and a packaging bag. The epoxy resin curing agent is a reaction product of (A) m-xylylenediamine or p-xylylenediamine, (B) a polyfunctional compound having one acyl group, which forms amide linkage by a reaction with polyamine and is capable of forming an oligomer; and (C) an aromatic dicarboxylic acid, an ester thereof, an amide thereof, an acid anhydride thereof, or an acid chloride thereof.