Patent Yard Sign in
Expired Canadian patentCanada

Catalytic hydroformylation of internal olefins

CA 1104587 A · Owner: Johnson, Matthey & Co. Limited · Inventors: Davidson, Peter J.; Hignett, Rosemary R.

CIPO record

Overview

Drawings and full text

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

Open the CIPO record

Abstract From the Canadian patent

This invention relates to catalytic hydroformylation of internal olefins. In particular the invention relates to a process for the production of a straight chain aldehyde from an olefin comprising reacting said olefin in a liquid reaction medium with hydrogen and carbon monoxide in the presence of a complex of Rh(I) in solution in the said medium as catalyst and a heterogeneous co-catalyst comprising a catalytic metal deposited upon a solid particulate support.

Read the whole patent

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

  • Granted July 7, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 7, 1998.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJune 19, 1978
GrantedJuly 7, 1981
Term endedJuly 7, 1998
Patent numberCA 1104587 A
Classification (IPC)C07C47/02 +1 more

Timeline

Timeline From CIPO dates

1979198119831985198719891991199319951997Application filedJune 19, 1978Patent grantedJuly 7, 1981Term endedJuly 7, 1998

Sources & verification

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