Process for the preparation of zirconium carboxylate
CA 1305725 C · Owner: Filachek, Lawrence Andrew · Inventors: Filachek, Lawrence Andrew; Whitehead, Stanley Ernest
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A process is described for the production of zirconium carboxylate comprising combining a carboxylate and a zirconium salt within a basic environment of a basic aqueous solution. The carboxylate is provided in an amount sufficient to give a ratio of carboxylate to zirconium equivalents in a range of from about 1.0:1.0 to 1.40:1.0 and the basic environment is provided by a basic salt in an amount sufficient to leave an excess of base after the combination of the zirconium salt and the carboxylate whereupon the, zirconium reacts in one step to form the zirconium carboxylate product.
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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 July 28, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 28, 2009.
- 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.