Modified zeolite omega and methods for preparing and for using same
CA 2076182 A1 · Owner: Best, Donald F. · Inventors: Best, Donald F.; Nair, Vinayan
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
MODIFIED ZEOLITE OMEGA AND METHODS, FOR PREPARING AND FOR USING SAME" ABSTRACT OF DISCLOSURE, A high surface area and high silica to alumina ratio form of zeolite Omega is synthesized by hydrothermal crystallization from reaction systems containing one or more alkali metal cations and one or more organic templating agents, modified by calcination at a temperature sufficient to decompose the organic templating agents ion-exchange, steam calcination and treatment with a low-pH aqueous ammonium ion solution. The resulting modified zeolite Omega is significantly improved with respect to catalytic activity and adsorption capacities for large molecular species.
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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 August 14, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 14, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 14, 2014.
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Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.