Process for the preparation of aliphatic tertiary amines
CA 1266269 C · Owner: Falk, Volker · Inventors: Weber, Jurgen; Kniep, Claus; Falk, Volker
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Aliphatic tertiary amines are prepared from primary or secondary amines by reaction with formaldehyde and the N-methyl-, olamines so formed are hydrogenated at temperatures of 50° to 200°C and pressures of 0.1 to 10 MPa in the presence of finely distributed palladium or catalysts containing palladium. The aliphatic tertiary amines produced according to the present invention are valuable intermediate products in the synthesis of pharmaceuticals, catalysts for the production of polyurethanes bactericides, dye intensification agents and deceleration agents.
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 February 27, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 27, 2007.
- 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.