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. 15, 2011
Filed:
Sep. 15, 2005
Natsuki Kobayashi, Ibaraki, JP;
Tatsumi Amano, Ibaraki, JP;
Masahiko Ando, Ibaraki, JP;
Nitto Denko Corporation, Osaka, JP;
Abstract
An object of the present invention is to provide a pressure-sensitive adhesive composition which is excellent in antistatic property of a non-electrification-prevented adherend (a subject to be protected) upon peeling, and has reduced stainability in an adherend and is excellent in adhesion reliance, and electrification preventing pressure-sensitive adhesive sheets and surface protecting films using the same. There is provided a pressure-sensitive adhesive composition, which comprises a (meth)acryl-based polymer containing, as a monomer component, 5 to 100% by weight of a (meth)acrylic acid alkylene oxide adduct, 0 to 95% by weight of a (meth)acryl-based monomer having an alkyl group of a carbon number of 1 to 14 other than the adduct, and 0 to 95% by weight of other polymerizable monomer, and an alkali metal salt, wherein an acid value of the (meth)acryl-based polymer is 10 or lower.