Powdered lacquer, its manufacture and use
CA 1317399 C · Owner: Weiss, Jorn-Volker · Inventors: Weiss, Jorn-Volker
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Disclosed are powdered lacquers based on a mixture of epoxide compounds and optionally polyesters as well as salts of primary C4-18 aliphatic and cycloaliphatic-diamines with phosphoric acid and/or sulphuric acid as a hardener. The lacquer also contains 1,4-diazabicyclo2.2.2octane. The salts can be prepared using easily available acids and diamines. The lacquers when hardened, give flat finished coatings.
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 May 4, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 4, 2010.
- 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.