Process for the preparation of spherical particles of magnesium alkoxide
CA 2033964 A1 · Owner: Horns, Udo · Inventors: Matthes, Reinhard; Jostmann, Thomas; Rauleder, Hartwig
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A process for the preparation of finely divided spherical magnesium alkoxide is disclosed. The product is prepared by spray drying of an alcoholic solution of the corresponding carboxylated magnesium alkoxide and subsequent drying and decarboxylation of the resulting finely divided carboxylated magnesium alkoxide. The solution is sprayed via a two-material nozzle with inner atomization which is operated in, the part-load range at 10 to 30% of its capacity into an inert accompanying gas which is under a pressure of 1.0 to 1.2 bar has, been preheated to 100-140°C and if fed concurrently. The magnesium alkoxide so prepared is used for the preparation of a catalyst for the polymerization of …
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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
- Filed January 10, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 10, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 10, 2013.
- 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.