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:
Apr. 29, 2025
Filed:
Oct. 12, 2022
Applicant:
3m Innovative Properties Company, St. Paul, MN (US);
Inventors:
Eumi Pyun, St. Paul, MN (US);
Hei-Seung Harry Lee, Woodbury, MN (US);
Assignee:
3M Innovative Properties Company, St. Paul, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09J 7/25 (2017.12); C08F 8/40 (2005.12); C09J 7/38 (2017.12);
U.S. Cl.
CPC ...
C08F 8/40 (2012.12); C09J 7/25 (2017.12); C09J 7/385 (2017.12); C08F 2810/50 (2012.12); C09J 2301/302 (2020.07); C09J 2301/414 (2020.07); Y10T 428/2891 (2015.01);
Abstract
A method of making a (meth)acrylate copolymer having pendent phosphate-containing groups and a pressure-sensitive adhesive that contains the (meth)acrylate copolymer having pendent phosphate-containing groups are provided. The method includes reacting a precursor (meth)acrylate copolymer having pendent carboxylic acid groups with an epoxy-functionalized phosphate compound. The pendent phosphate-containing groups on the reaction product can function as a flame retardant for the pressure-sensitive adhesive.