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:
Mar. 19, 2013
Filed:
Jun. 01, 2010
Kenichi Yamamoto, Ibaraki, JP;
Toshihide Suzuki, Ibaraki, JP;
Shouhei Wada, Ibaraki, JP;
Mitsuyoshi Shirai, Ibaraki, JP;
Akiko Takahashi, Ibaraki, JP;
Kenichi Yamamoto, Ibaraki, JP;
Toshihide Suzuki, Ibaraki, JP;
Shouhei Wada, Ibaraki, JP;
Mitsuyoshi Shirai, Ibaraki, JP;
Akiko Takahashi, Ibaraki, JP;
Nitto Denko Corporation, Ibaraki-shi, JP;
Abstract
An adhesive sheet is provided in which properties that cause corrosion of a non-contacting metal are inhibited. The adhesive sheet is provided with a pressure-sensitive adhesive layer formed from an aqueous dispersion type adhesive composition. The pressure-sensitive adhesive composition contains an aqueous dispersion type acrylic polymer synthesized using a chain transfer agent that does not have sulfur as a composite element thereof. The amount of sulfur-containing gas (as SO) released from the pressure-sensitive adhesive sheet in the case of heating for 1 hour at 85° C. is 0.043 μg/1 cmor less, adhesive strength on an ABS sheet is 10 N/20 mm or more, and holding time as determined in an 80° C. cohesive strength test is 1 hour or more.