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. 26, 2013
Filed:
Jul. 23, 2008
Junichi Ikeda, Nara, JP;
Nobuya Morishita, Nara, JP;
Ryo Arai, Nara, JP;
Chisato Katahira, Nara, JP;
Yoshihiro Takatani, Chikusei, JP;
Kouzaburo Yokouchi, Chikusei, JP;
Mitsuteru Inoue, Toyohashi, JP;
Pang Boey Lim, Toyohashi, JP;
Junichi Ikeda, Nara, JP;
Nobuya Morishita, Nara, JP;
Ryo Arai, Nara, JP;
Chisato Katahira, Nara, JP;
Yoshihiro Takatani, Chikusei, JP;
Kouzaburo Yokouchi, Chikusei, JP;
Mitsuteru Inoue, Toyohashi, JP;
Pang Boey Lim, Toyohashi, JP;
Kyoeisha Chemical Co., Ltd., Osaka-Shi, JP;
National University Corporation Toyohashi University of Technology, Toyohashi-Shi, JP;
Abstract
A composition for holographic recording medium, which can be coated in a uniform thickness and enables to simply produce a high definition holographic recording medium is provided. And a holographic medium having a low error rate, high storage capacity, high-performance, high-density, which is produced using the composition for the holographic recording medium, is also provided. The composition comprises a (meth)acrylic acid ester group-containing polymerizable substance, an alicyclic epoxy group-containing cationical polymerizable substance of which is ring-opening polymerized by heat, and a hydroxyl group-containing substance which is reactive with the alicyclic epoxy group-containing cationical polymerizable substance. The holographic recording medium is produced by forming a holographic recording layer on a substrate by applying the composition on the base material and polymerizing the alicyclic epoxy group-containing cationical polymerizable substance and the hydroxyl group-containing substance.