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. 19, 2013
Filed:
Apr. 24, 2009
Yoshio Nakagawa, Ibaraki, JP;
Hiroichi Ukei, Ibaraki, JP;
Yoshio Nakagawa, Ibaraki, JP;
Hiroichi Ukei, Ibaraki, JP;
Nitto Denko Corporation, Ibaraki-shi, Osaka, JP;
Abstract
Provided is a release-lined pressure-sensitive adhesive sheet comprising a release linerand a pressure-sensitive adhesive sheet. The release linerhas an average linear expansion coefficient of at most 7×10/° C. between 25° C. and 40° C. A layerto constitute a surfaceA on the pressure-sensitive adhesive layer side of the release lineris formed of a polyolefin-based resin composition containing none or at most 0.01 mass % of a phosphorous-based antioxidant. The surfaceA is divided into a plurality of sectionsby a plurality of ridgesA andB with each ridge having a height of 5 μm to 50 μm. At least one of the sectionsinscribes a circle of a diameter greater than 500 μm.