Process for producing aqueous n-methylmorpholine-n-oxide solutions
CA 1279644 C · Owner: Huls Aktiengesellschaft · Inventors: Scholten, Heinz; Rindtorff, Klaus
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
N-methylmorpholine-N-oxide is prepared by reacting the azeotrope of methylmorpholine and water with an aqueous solution of hydrogen peroxide. The reaction solution product is thereupon concentrated to the desired content in N-methylmorpholine-N-oxide. The resulting solution has a high purity of the N-oxide and the process is simple.
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 January 29, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 29, 2008.
- 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.