Aqueous resin dispersions
CA 2084427 A1 · Owner: Kansai Paint Co. Ltd. · Inventors: Kamikado, Koji
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An aqueous resin dispersion containing as an aqueous resin component a polyurethane-modified epoxypolyamine resin comprising a reaction product of an epoxy group-containing polyurethane compound obtained by the reaction of a polyhydroxy compound having a number average molecular weight of 50 to 8,000 a polyisocyanate, compound, and a compound containing one hydroxyl group and at least one alicyclic epoxy group in a molecule; a bisphenol compound; a bisphenol diglycidyl ether compound; and an active hydrogen-containing amine compound. Said aqueous resin dispersion has excellent corrosion resistance and is suited especially for cathode electrodeposition coating.
Read the whole patent
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 December 3, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 3, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 3, 2014.
- 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.