Carrier-supported catalyst for making monocarboxylic anhydrides
CA 1264050 C · Owner: Hoechst Aktiengesellschaft · Inventors: Ritter, Gebhard; Luft, Gerhard
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Carrier-supported catalyst for making monocarboxylic anhydrides by subjecting a suitable ester or ether to a carbonylation reaction. The carrier-supported catalyst has an organosilicon compound containing an alkoxy or halogen group and also an organonitrogen, organophosphorus organo-, arsenic, organosulfur, mercapto or thioether group as a polyfunctional adhesion promoter additively combined with the carrier material on the one hand, and with a nickel compound on the other hand.
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 December 27, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 27, 2006.
- 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.