Alkoxylation process using calcium based catalysts
CA 1291148 C · Owner: Wharry, Donald L. · Inventors: Wharry, Donald L.; Shannon, Mark L.; Leach, Bruce Eugene
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A process for preparing an alkoxylation catalyst in which the catalyst pre-mix is formed by admixing an alkoxylated alcohol with a calcium containing compound which is dispersible in the alkoxylated alcohol an inorganic said, and an aluminum trialkoxide the pre-mix being heated to a, temperature and for a time sufficient to effect at least partial exchange reaction between the alkoxlde groups of the aluminum alkoxide and the hydroxyl groups of the alkoxylated alcohol. There is also disclosed and claimed an alkoxylation process utilizing the catalysts formed as described above.
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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 October 22, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 22, 2008.
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Timeline
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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.