Coating compositions comprising an aqueous film-forming polymer dispersion and a polyether silicone, preparation method thereof and use of same
CA 2541091 C · Owner: Joubert, Daniel · Inventors: Lorentz, Gilles; Joubert, Daniel
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to novel coating compositions or surface-, treatment , compositions, in particular paint compositions. The compositions comprise an aqueous dispersion of film-forming polymer and , - a sufficient amount of a silicone polyether satisfying formula (I) below: (see formula I), These compositions can be used in various applications such as interior or , exterior water-based paints render, varnish, a semi-thick coating, formulations for finishes for architectural textiles rigid or flexible plastic surfaces, or surface--protection products.
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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 October 8, 2004 and granted January 10, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 8, 2024.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 8, 2026.
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Timeline
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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.