Water based multicolor coating compositions and process for their preparation
CA 2126117 A1 · Owner: Brymore Enterprises S.A. · Inventors: Bollini, Germano
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention provides new aqueous multicolor compositions containing discrete hydrated colored globules dispersed in an aqueous dispersing medium containing a film forming material. To impart them enhanced properties of long term stability and resistance to application by means of brush and roller, the globules are obtained by reacting two or more pigment containing hydrophilic colloids selected from carboxylated cellulose colloids, polysaccaride gums and acrylic polymers with at least two metal cations selected from Fe3+, Al3+, Ca2+, Mg2+. The thus obtained colored globules are comprising 2.5 to 20.0% by weight of pigment and fillers and 10 to 40% by weight of a film forming resin, and …
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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 June 17, 1994. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 17, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 17, 2016.
- 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.