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. 18, 2010
Filed:
Nov. 07, 2001
Akihisa Murata, Ibaraki, JP;
Toshiyuki Oshima, Ibaraki, JP;
Yukio Arimitsu, Ibaraki, JP;
Kazuyuki Kiuchi, Ibaraki, JP;
Akihisa Murata, Ibaraki, JP;
Toshiyuki Oshima, Ibaraki, JP;
Yukio Arimitsu, Ibaraki, JP;
Kazuyuki Kiuchi, Ibaraki, JP;
Nitto Denko Corporation, Osaka, JP;
Abstract
A heat-peelable pressure-sensitive adhesive sheet comprises: a base material; and a thermo-expandable pressure-sensitive adhesive layer containing thermo-expandable microspheres, the thermo-expandable pressure-sensitive adhesive layer having a surface to be adhered to an adherend, wherein the surface of the thermo-expandable pressure-sensitive adhesive layer before subjecting to heating has a centerline average roughness of greater than 0.4 μm, and has a convex portion resulting from the thermo-expandable microspheres.