Process for the production of alkylene glycols with metalate-containing solids
CA 1268784 C · Owner: Soo, Hwaili · Inventors: Soo, Hwaili; Robson, John Howard
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An improved process for the hydrolysis of alkylene oxide to produce alkylene glycol which comprises:, (a) reacting alkylene oxide and water in the presence of a selectivity-enhancing metalate-containing solid until about 90-95% of the alkylene oxide is converted to alkylene glycol; and (b) completing the hydrolysis reaction of a) in the absence of the selectivity-enhancing metalate-containing solid.
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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 May 8, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 8, 2007.
- 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.