Urethane modified water-reducible alkyd resins
CA 2598494 C · Owner: Zrin, Ewald · Inventors: Scherz, Johannes; Zrin, Ewald; Gogg, Manfred
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Urethane modified water-reducible alkyd resins ABCD comprising moieties , derived from polyhydric alcohols A modified fatty acids B made h.gamma. , grafting olefinically unsaturated carboxylic acids B2 onto fatty acids Bl ungrafted fatty acids C and polyfunctional isocyanates D a process for their , production, and a method of use thereof in coating binders
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 February 20, 2006 and granted November 25, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 20, 2026.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- 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.