Solid-acid alkylation catalyst compositions and alkylation processes using the same
CA 2083530 C · Owner: Hollstein, Elmer J. · Inventors: Angstadt, Howard P.; Hsu, Chao-Yang; Hollstein, Elmer J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
New catalyst compositions comprise sulfated and calcined mixtures of (1) a support comprising an oxide or hydroxide of a Group IV-A element, (2) an oxide or hydroxide of molybdenum, and (3) an oxide or hydroxide of a Group I-B II-B, III-A, III-B, IV-B, V-A or VI-A metal other than molybdenum or a metal of the lanthanide Series of the Periodic Table. A process for alkylation of acyclic saturated compounds with acyclic unsaturated compounds utilizing such catalyst compositions.
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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 November 23, 1992 and granted August 20, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 23, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 23, 2014.
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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.