Aqueous crosslinkable coating compositions
CA 2284767 A1 · Owner: Avecia Bv · Inventors: Overbeek, Gerardus Cornelis; Padget, John Christopher; Colstee, Erik Hendrik
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Aqueous crosslinkable coating composition comprising (A) an aqueous dispersion of at least one vinyl polymer which is hydroxyl- and acid-functional in , which: (i) said at least one polymer has a hydroxyl value within the range of from 8 to 250 mg KOH/g of solid polymer; (ii) said at least one vinyl polymer has an acid value within the range of from 2 to 55 mg KOH/g of solid polymer where the contribution of at least 30 % of the acid value results from the acid groups of polymerised units in the vinyl polymer of a monocarboxylic acid(s) of formula: P-CO2H where P is a moeity having a chain of at least 5 carbon atoms linked to carboxyl groups and which includes a polymerisable …
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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 March 30, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 30, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 30, 2020.
- 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.