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. 03, 2022
Filed:
Jan. 29, 2019
Nitto Denko Corporation, Ibaraki, JP;
Masahito Niwa, Ibaraki, JP;
Itsuhiro Hatanaka, Ibaraki, JP;
Taiki Shimokuri, Ibaraki, JP;
Shou Takarada, Ibaraki, JP;
Takahiro Nonaka, Ibaraki, JP;
Keisuke Hirano, Ibaraki, JP;
Fumika Kawatake, Ibaraki, JP;
Mika Ikemura, Ibaraki, JP;
NITTO DENKO CORPORATION, Ibaraki, JP;
Abstract
A pressure sensitive adhesive includes an acryl-based base polymer. The acryl-based base polymer contains an acryl-based segment and a urethane-based segment. In the acryl-based base polymer, the content of the urethane-based segment is 3 to 20 parts by weight based on 100 parts by weight of the acryl-based segment. A pressure sensitive adhesive sheet can be obtained by applying a pressure sensitive adhesive composition on a substrate in a layer form. The pressure sensitive adhesive composition may be curable and may include a polymerization initiator. In formation of the pressure sensitive adhesive sheet, the curable pressure sensitive adhesive composition may be, as necessary.