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. 05, 2026
Filed:
Feb. 24, 2021
Applicant:
Nitto Denko Corporation, Ibaraki, JP;
Inventors:
Yosuke Shimizu, Ibaraki, JP;
Naofumi Kosaka, Ibaraki, JP;
Ryoko Asai, Ibaraki, JP;
Kenta Kumakura, Ibaraki, JP;
Assignee:
NITTO DENKO CORPORATION, Ibaraki, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09J 133/08 (2006.01); C08F 2/48 (2006.01); C08F 220/18 (2006.01); C08F 220/20 (2006.01); C08F 226/10 (2006.01); C09J 11/06 (2006.01);
U.S. Cl.
CPC ...
C09J 133/08 (2013.01); C08F 2/48 (2013.01); C08F 220/1804 (2020.02); C08F 220/1806 (2020.02); C08F 220/20 (2013.01); C08F 226/10 (2013.01); C09J 11/06 (2013.01); C09J 2301/124 (2020.08); C09J 2301/302 (2020.08); C09J 2301/416 (2020.08); C09J 2301/502 (2020.08); C09J 2433/001 (2013.01);
Abstract
Provided is a PSA sheet that can combine bonding reliability and peeling removability, and further can be peeled off without causing deformation or damage to the adherend in various peeling modes. The PSA sheet provided by this invention has a PSA layer. The PSA sheet has a water-peel strength of 2 N/10 mm or less. The PSA sheet further has a stress at 100% elongation of less than 30 MPa as well as a multiplication product (σf·εf) of fracture stress σf(MPa) and fracture strain εf (%) of 250 or greater.