Production of ethanolamine by amination of ethylene oxide over acid activated clays
CA 1330666 C · Owner: Knifton, John Frederick · Inventors: Knifton, John Frederick; Grice, Neal John
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
PRODUCTION OF ETHANOLAMINE BY AMINATION OF ETHYLENE OXIDE OVER ACID ACTIVATED CLAYS (D#80,833-F), ABSTRACT OF THE DISCLOSURE A process for preparing monoalkanolamines from ammonia and alkylene oxide using a catalyst which allows for high selectivity and high productivity which comprises an acid modified montmorillonite clay.
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 July 12, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 12, 2011.
- 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.