Aqueous coating compositions based on acrylate copolymers
CA 2576863 C · Owner: Coatings Foreign Ip Co. Llc · Inventors: Rommens, Johan; Becker, Wiebke; Duecoffre, Volker
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention is directed to aqueous coating composition comprising A) at least one water-dilutable (meth)acrylate copolymer and B) at least one polyisocyanate cross-linking agent with free isocyanate groups wherein the , (meth)acrylate copolymer comprise a) 10-80% by weight of at least one reaction product of a monoepoxyester and an unsaturated acid functional monomer b) 0- 40% by weight of at least one hydroxy functional unsaturated monomer which is different from component a), c) 1-8% by weight of at least one unsaturated acid functional monomer and d) 0-70% by weight of at least one other polymerisable unsaturated monomer, wherein the% by weight of components A) and B) and of …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed August 30, 2005 and granted December 18, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 30, 2025.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.