Process for producing hydrogen peroxide, c1 to c4 monopercarboxylic acid and c4 to c18 dipercarboxylic acid complexes by the fluidised bed process
CA 2179663 A1 · Owner: Breitenbach, Jorg · Inventors: Breitenbach, Jorg; Grabowski, Sven; Sanner, Axel
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The production of hydrogen peroxide, C1 to C4 monopercarboxylic acid and C4 to C18 dipercarboxylic acid complexes by the fluidised bed process by the addition of a solution of hydrogen peroxide C1 to C4 monopercarboxylic acid, C4 to C18 dipercarboxylic acid or a mixture thereof in water or carboxylic acids to a powdered or pregranulated matrix in or outside the fluidised bed and simultaneously or successively drying of the fluidised bed in which use , is made as a matrix of: A) N-vinyl caprolactam homopolymer B) N-vinyl , caprolactam copolymers with N-vinyl pyrrolidone N-vinyl imidazole, acryl or , methacryl amidopropyl-3-sulphonic acid acrylic or methacrylic acid or , mixtures thereof …
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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 December 10, 1994. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 10, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 10, 2016.
- 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.