Process for producing ketoximes
CA 1305727 C · Owner: Paparatto, Giuseppe · Inventors: Tauszik, Giorgio; Cesana, Alberto; Paparatto, Giuseppe
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 process of producing ketoximes, characterized in that a secondary alcohol cor-, responding to the desired ketoxime is partially oxidated, in the liquid phase with 02 an oxidated mixture being the-, reby formed which contains an excess of unreacted alcohol, the ketone corresponding to said alcohol and H2O2, and that said oxidated mixture is directly reacted with NH3 in the liquid phase (without isolating the alcohol the ketone and H2O2) in the presence of an ammoximation catalyst. * * * * * *
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 July 28, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 28, 2009.
- 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.