Process for making 2-alkyl-or alkenyl-2-oxazolines from fatty acid glycerides
CA 2053876 A1 · Owner: Neumann, Peter · Inventors: Fristad, William; Falbe, Juergen; Neumann, Peter
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A process for making 2-alkyl- or alkenyl-2-oxazolines in which the alkyl, or alkenyl group is a hydroxy-substituted hydrocarbon residue with at least 7 carbon atoms, produces the compounds of the title in large quantities if fatty acid glycerides with at least 8 carbon atoms are caused to react with 2-amino ethanol in the presence of titanium or zirconium compounds of the M(OR2)4 type (M = Ti or Zr).
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
- Filed April 19, 1990. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 19, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 19, 2012.
- 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.