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:
Jun. 24, 2025
Filed:
Aug. 30, 2021
Byk-chemie Gmbh, Wesel, DE;
Marc Eberhardt, Wesel, DE;
Guillaume Jaunky, Wesel, DE;
BYK-Chemie GmbH, Wesel, DE;
Abstract
The invention relates to a method of improving the surface properties of a radiation cured coating, comprising adding to a radiation-curable coating composition 0.1 to 10.0% by weight, based on the total weight of the radiation-curable coating composition, of a polymer (A) having a polysiloxane backbone and at least two methacryloyl groups connected to the polysiloxane backbone via linking groups, wherein the linking groups comprise at least one non-cyclic ether group, and wherein the polysiloxane backbone is connected to the linking groups via a Si—C bond, and wherein polymer (A) is prepared by a process comprising i) Providing a polysiloxane backbone having at least two Si—H groups, ii) Providing a molecule having at least one methacryloyl group, one allyl group, and at least one non-cyclic ether group located between the allyl group and the at least one methacryloyl group, and iii) Forming a covalent bond between the polysiloxane backbone i) and the molecule ii) by reacting the Si—H groups with the allyl group via a hydrosilylation reaction.