Binders for non-tacky, non-soiling, flexible coatings
CA 1339173 C · Owner: Matthaei, Lothar · Inventors: Dragon, Andree; Franzmann, Gernot; Teichmann, Helmut
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Binders for non-tacky, non-soiling, flexible coatings based on aqueous copolymer dispersions which contain zinc-amine complexes essentially consist of, (A) from 99 to 90% by weight of a (meth)acrylate copolymer dispersion whose polymer has a glass transition temperature of from -40 to -1°C and, (9) from 1 to 10% by weight of a water-soluble zinc-amine complex salt of a polymeric carboxylic acid the percentages by weight being based on the total amount of polymer.
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
- Granted July 29, 1997. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 29, 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.