Process for the production of alkylene glycols from secondary alcohols
CA 1261880 A · Owner: The British Petroleum Company P.L.C. · Inventors: Griggs, Colin G.; Pippard, David A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Case5743(2), ABSTRACT OF THE DISCLOSURE Process for the Production of Alkylene Glycols from Secondary Alcohols, Higher alkylene glycols having more than three carbon atoms, are prepared by reacting a secondary alcohol with formaldehyde in the presence of an organic peroxide of formula R-O-O-R1 in which R and R1 are independently alky or aralkyl groups containing 3 to 12 carbon atoms. By using secondary alcohols oxidation of the, alcohol reactant is reduced. The reaction is preferably carried out under anhydrous conditions using a polymeric source of formaldehyde.
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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 September 26, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 26, 2006.
- 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
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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.