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. 08, 2025
Filed:
Dec. 19, 2016
Henkel Ag & Co. Kgaa, Duesseldorf, DE;
Olivier Demoulin, Grez-Doiceau, BE;
Jurgen Van Holen, Ninove, BE;
Marc Van Muylder, Geraardsbergen, BE;
HENKEL AG & CO. KGaA, Duesseldorf, DE;
Abstract
The present invention provides the methods for producing a UV-curable acrylic copolymer. The method includes polymerizing a mixture of monomers comprising (i) 40-95 wt % of at a (meth) acrylate monomer, (ii) 5-60 wt % of a copolymerizable monomer, wherein the copolymerizable monomer is selected from those whose homopolymers have a glass transition temperature of higher than −30° C., and (iii) optionally 0.5-20 wt % of a copolymerizable functional monomer having a functional group selected from the group consisting of a hydroxyl group and a carboxyl group to form an acrylic copolymer. The method includes reacting the acrylic copolymer with at least one type of monomer comprising a UV-curable functional group in the presence of a catalyst to form the UV-curable acrylic copolymer. Also encompassed are UV-curable acrylic copolymers thus formed, adhesive composition comprising the UV-curable acrylic copolymers, methods for manufacturing adhesive sheets comprising the UV-curable acrylic copolymers, and use of the UV-curable acrylic copolymers.