Process for the preparation of carboxylic acid methyl esters
CA 1328886 C · Owner: Weber, Jurgen · Inventors: Lappe, Peter; Weber, Jurgen; Springer, Helmut
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
of Disclosure, A process for the preparation of methyl carboxylates by the reaction of mono or dicarboxylic acids having more than 5 carbon atoms and methanol in the presence of acidic catalysts at temperatures from 100° to 150°C and below the boiling point of the carboxylates being produced.
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 April 26, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 26, 2011.
- 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.