Dimethylacetamide from carbonylation of trimethylamine
CA 1304408 C · Owner: E.I. Du Pont De Nemours And Company · Inventors: Bellis, Harold E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A process for producing dimethylacetamide from trimethylamine and carbon monoxide using as catalyst cobalt octacarbonyl associated with from 0.5-2.0 and preferably 0.5-1.5 moles of water per mole of cobalt octacarbonyl. The reaction is carried out at 175-275°C and a pressure of from 400-4000 psi. CH-1165A
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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 30, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 30, 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.