Process for preparing di-amino-polyalkenyl ethers
CA 1234122 A · Owner: Exxon Research And Engineering Company · Inventors: Montagna, Angelo A.; Ho, Win-Sow W.; Stogryn, Eugene L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Disclosed is a process for producing di-amino-polyalkyenyl ethers by reacting (a) one of more acyclic or hetecocyclic amino compounds with (b) one or more polyalkenyl ether glycols or polyalkenyl amino ether alcohols, in the presence of a hydrogenation catalyst, at elevated temperatures and pressures. The resulting di-amino-polyalkenyl ethers are useful in acid gas scrubbing, particularly in the selective removal of H2S from gaseous streams containing CO2 and H2S.
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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 March 15, 1988. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 15, 2005.
- 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.