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:
May. 01, 2018
Filed:
Oct. 08, 2014
Toyo Seikan Group Holdings, Ltd., Tokyo, JP;
Shinpei Okuyama, Yokohama, JP;
Yusuke Obu, Tokyo, JP;
Shunya Nangou, Yokohama, JP;
Naru Kawahara, Yokohama, JP;
TOYO SEIKAN GROUP HOLDINGS, LTD., Tokyo, JP;
Abstract
A gas-barrier laminate () of a structure in which a first inorganic barrier layer (), a water-trapping layer () and a second inorganic barrier layer () are provided in this order on a plastic base material (), wherein the water-trapping layer () is a layer in which a granular moisture-absorbing agent is dispersed in a matrix of an ionic polymer, the granular moisture-absorbing agent being capable of absorbing moisture to a degree lower than that attained by the matrix, and an organic layer () is provided between the water-trapping layer () and the second inorganic barrier layer (), the organic layer () serving as an underlying layer for forming the second inorganic barrier layer. The water-trapping layer has excellent barrier property against water and is, at the same time, effectively suppressed from swelling despite it has absorbed moisture. The water-trapping layer is, further, effectively suppressed from losing its activity.