Coating bath for cataphoretic coating of surfaces of electrically conductive substrates
CA 1215189 A · Owner: Basf Farben + Fasern Aktiengesellschaft · Inventors: Srausse, Udo; Arlt, Klaus; Streitberger, Hans-Joachim
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to the use of specific quaternary ammonium salts in coating baths for the cataphoretic coating of electrically conductive substrates. The quaternary ammonium salts used have the following general formula:, wherein, R1 = H or CH3, R2 = H or CnH2n + 1 R3 = H or , R4 = CH3 or CnH2n + 1, X? is an anion of an inorganic or organic acid and n is a whole number from 10 to 18. These ammonium salts enable thicker coatings to be deposited, while still exhibiting good adhesion, and are particularly useful in electrodeposition processes.
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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
- Granted December 9, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 9, 2003.
- 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.