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:
Sep. 09, 2014
Filed:
Mar. 16, 2009
Applicants:
Tetsuya Hirose, Osaka, JP;
Shinji Inokuchi, Osaka, JP;
Kazuhisa Maeda, Osaka, JP;
Yusuke Sugino, Osaka, JP;
Inventors:
Tetsuya Hirose, Osaka, JP;
Shinji Inokuchi, Osaka, JP;
Kazuhisa Maeda, Osaka, JP;
Yusuke Sugino, Osaka, JP;
Assignee:
Nitto Denko Corporation, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09J 133/08 (2006.01); C09J 133/10 (2006.01); B32B 7/12 (2006.01); C09J 7/02 (2006.01);
U.S. Cl.
CPC ...
C09J 7/0217 (2013.01); C09J 133/08 (2013.01);
Abstract
The present invention relates to an acrylic pressure-sensitive adhesive including: a) an acrylic polymer containing, as a monomer unit, an alkyl (meth)acrylate including an alkyl group having 1 to 20 carbon atoms in an amount of 50% by weight or more; and b) a tackifier resin, in which the acrylic polymer a) contains two kinds of monomer units having a difference in solubility parameter (SP value) of 0.2 (MPa)or more, each in an amount of 15% by weight or more.