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Canadian application, no grantCanada

Process for selective hydrogenation of hydro-formylation mixtures

CA 2282162 A1 · Owner: Schuler, Joachim · Inventors: Droste, Wilhelm; Scholz, Bernhard; Buschken, Wilfried

CIPO record

Overview

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

The invention relates to a process for the selective hydrogenation of reaction mixtures from the hydroformylation of C5 to C24 olefins using hydrogen at solid catalysts at elevated temperature and at elevated pressure in which, process use is made of a supported catalyst which as active components. comprises copper nickel and chromium.

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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 September 14, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 14, 2019.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 14, 2021.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledSeptember 14, 1999
GrantedNo grant recorded
Term endedSeptember 14, 2019
Patent numberCA 2282162 A1
Classification (IPC)C07C31/12 +2 more

Timeline

Timeline From CIPO dates

2000200220042006200820102012201420162018Application filedSep 14, 1999Term endedSep 14, 2019

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.