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:
Jun. 13, 2017
Filed:
May. 11, 2015
Denka Company Limited, Tokyo, JP;
Gosuke Nakajima, Shibukawa, JP;
Masanobu Kutsumi, Shibukawa, JP;
DENKA COMPANY LIMITED, Tokyo, JP;
Abstract
A heat resistant adhesive sheet is provided that does not easily develop deformation of an adhesive sheet due to heating. Such an adhesive sheet made by laminating an adhesive layer to a substrate is provided, characterized in that the substrate is heat shrinkable and the adhesive layer contains a (meth)acrylate copolymer, a photopolymerizable compound, a polyfunctional isocyanate curing agent, and a photopolymerization initiator and does not substantially contain a tackifying resin. This adhesive sheet is not deformed even when heated. Since the adhesive does not substantially contain a tackifying resin, softening of the adhesive layer does not occur even when the sheet is heated.