New coating binders with urea and/or hydantoin structures, a process for their production and their use
CA 2359184 A1 · Owner: Hausstatter, Bernd · Inventors: Gertzmann, Rolf; Hausstatter, Bernd; Schmalstieg, Lutz
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a binder comprising at least one blocked polyisocyanate having urea and/or hydantoin groups and at least one hydroxyl component having an ester, imide amide and/or urethane group, at least one organic solvent and optionally other auxiliary substances and additives, a process for their production. The binders according to the invention form coatings with a high temperature resistance and a good solderability.
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 October 15, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 15, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 15, 2023.
- 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.