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:
Oct. 24, 2023
Filed:
Jan. 03, 2019
Applicant:
3m Innovative Properties Company, Saint Paul, MN (US);
Inventors:
Yoshiteru Kakinuma, Tokyo, JP;
Aizoh Sakurai, Tokyo, JP;
Assignee:
3M INNOVATIVE PROPERTIES COMPANY, St. Paul, MN (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08G 18/10 (2006.01); C08G 18/72 (2006.01); C08G 18/83 (2006.01); C09J 7/20 (2018.01); C09J 7/25 (2018.01); C09J 183/04 (2006.01);
U.S. Cl.
CPC ...
C09J 7/205 (2018.01); C08G 18/10 (2013.01); C08G 18/72 (2013.01); C08G 18/83 (2013.01); C09J 7/25 (2018.01); C09J 183/04 (2013.01); C09J 2301/122 (2020.08); C09J 2475/006 (2013.01); C09J 2483/00 (2013.01);
Abstract
The disclosed adhesive sheet exhibits high anchoring performance and where separation between the substrate and the adhesive layer substantially does not occur when unwinding or re-peeling in actual applications. The adhesive sheet comprises a substrate including a urethane polymer component at least at a portion of a surface and a silicone adhesive layer that is in contact with the urethane polymer component, wherein the urethane polymer having a chain extender-derived hard segment and a polyoxyalkylene polyol-derived soft segment.