Selective hydrocarboxylation of propylene to isobutyric acid
CA 1195340 A · Owner: The Standard Oil Company · Inventors: Haase, Thomas A.; Pesa, Frederick A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A process for the selective hydrocarboxylation of propylene to produce predominantly isobutyric acid in the liquid phase is provided. The reaction of propylene carbon, monoxide and water is effected at a temperature of about 75°C to about 150°C and at a pressure of about 250 psi to about 5000 psi in the presence of a suitable solvent and a catalyst comprising palladium or a palladium compound a phosphoamine, promoter ligand compound and a hydrogen halide.
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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 October 15, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 15, 2002.
- 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.