A process for preparing physically drying coatings from aqueous dispersions
CA 2280108 A1 · Owner: Irle, Christoph · Inventors: Muller, Heino; Irle, Christoph; Blum, Harald
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 a process for preparing a coated substrate by coating the substrate with an aqueous dispersion which may, be physically cured to form a light stable elastic coating, containing, A) a polyol component containing A1) 20 to 60 wt.%, based on the resin solids content of polyol component A), of a polyester resin containing 10 to 60 wt.% based on the weight of the polyester resin of one or more, aliphatic, saturated or unsaturated monocarboxylic acids having 8 to 30 carbon atoms, and 0.4 to 5 wt.% based on, the weight of the polyester resin of one or more radically, polymerizable .alpha..beta.-unsaturated mono- or di-carboxylic acids having 3 to 8 carbon atoms, or …
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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 12, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 12, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 12, 2021.
- 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
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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.