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:
Feb. 23, 2016
Filed:
Jun. 26, 2009
Yusuke Obu, Kanagawa, JP;
Kashiko Kawai, Kanagawa, JP;
Tomohiro Miyai, Kanagawa, JP;
Takahiro Hidaka, Kanagawa, JP;
Hideki Masuda, Kanagawa, JP;
Yusuke Obu, Kanagawa, JP;
Kashiko Kawai, Kanagawa, JP;
Tomohiro Miyai, Kanagawa, JP;
Takahiro Hidaka, Kanagawa, JP;
Hideki Masuda, Kanagawa, JP;
TOYO SEIKAN KAISHA, LTD., Tokyo, JP;
KANSAI PAINT CO., LTD., Hyogo, JP;
Abstract
A method of producing a gas-barrier laminated member having a gas-barrier layer formed by crosslinking the carboxyl groups of a polycarboxylic acid polymer with multivalent metal ions. The method comprises forming a layer (A) containing an alkaline compound of a multivalent metal on at least one surface of a plastic base material, applying a solution (b) obtained by dissolving a polycarboxylic acid polymer in a solvent containing at least water onto the layer (A) that contains the alkaline compound of the multivalent metal, and removing the solvent by a heat treatment so that a metal-ionically crosslinked structure is formed with the multivalent metal ions among the carboxyl groups in the solution (b). The gas-barrier laminated member has excellent adhesion to the base material, gas-barrier property, retort resistance and flexibility, and is efficiently produced by only being heated at a low temperature for a short period of time through a decreased number of simplified steps.