Process for producing mixtures of ketones and aldehydes
CA 1318677 C · Owner: Union Carbide Corporation · Inventors: Bryant, David R.; Papa, Anthony J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Invention, A hydrocarbonylation process for producing an aldehyde or a mixture of a ketone and an aldehyde which comprises:, (I) forming a reaction mixture comprising: (a) a catalytic amount of a complex, catalyst consisting essentially of rhodium in complex combination with:, (i) a triorganophosphine and, (ii) a carboxylic acid having a, phenyl group substituted at the para position with a non-reactive, electron-withdrawing group said, phenyl group being free of further substitution amd said electron, withdrawing group being substantially non-reactive in said process;, (b) an alpha-olefin having 2 to 5 carbon atoms, (c) carbon monixide, and (d) hydrogen, with the proviso …
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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 June 1, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 1, 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.