Waterbased coating composition of methylol(meth)acrylamide acrylic polymer, acrylic hydrosol and melamine crosslinking agent
CA 2078073 A1 · Owner: Nickle, Stanley K. · Inventors: Werner, Ervin R. Jr.; Nickle, Stanley K.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Title, WATERBASED COATING COMPOSITION OF METHYLOL (METH)ACRYLAMIDE ACRYLIC POLYMER, ACRYLIC HYDROSOL AND MELAMINE CROSSLINKING AGENT ABSTRACT, A waterbased coating composition formed of an acrylic latex and an acrylic hydrosol dispersed in an aqueous carrier and has a pH of about 7-10; wherein the binder is a blend of an acrylic latex polymer having a particle size of about 0.06-0.20 microns and an acrylic hydrosol polymer having a particle size of less than 0.30 microns; wherein the blend contains a. a methylol (meth)acrylamide carboxyl containing acrylic latex polymer of, polymerized monomers of alkyl methacrylate alkyl acrylate or mixtures thereof, 1-15% by weight of methylol …
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 September 11, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 11, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 11, 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.