Synthetic fatty acid process
CA 1315802 C · Owner: Mirviss, Stanley Burton · Inventors: Mirviss, Stanley Burton
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Straight or branch chain primary alcohols of from C-4 to C-30 chain lengths per molecule, or mixtures of branch and straight chains, are selectively reacted with an anhydrous alkali metal hydroxide. In the reaction the, temperature of reaction is gradually increased to maintain the reaction medium in a liquid non-viscous state. The reaction temperature is, however, maintained at a sufficiently low temperature to minimize by-product formation. The process is conducted at temperatures of from about 175°C to about 400°C for sufficient time to form the sodium salt of the acid which is then converted to the acid utilizing a mineral acid.
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 6, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 6, 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.