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Expired Canadian patentCanada

Olefin oligomerization process and catalyst

CA 1292733 C · Owner: Threlkel, Richard S. · Inventors: Threlkel, Richard S.

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Abstract From the Canadian patent

A catalyst composition comprising a transition metal complex selected from complexes of nickel and palladium with a fluoro-organic thiol or sulfide ligand having a single sulfur atom in a ligating position and wherein the carbon atom adjacent the carbon to which the sulfur atom is attached has at least one fluoro substituent and with the proviso that said fluoro-organic thiol or sulfide does not contain any other ligating group or atom in a ligating position which will displace fluoro as a ligand, and an organometallic-reducing agent selected from the group of borohydride and organoaluminum halides and alkoxides. The catalyst is especially useful for the oligomerization of olefins to higher …

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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

  • Granted December 3, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 3, 2008.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledAugust 14, 1987
GrantedDecember 3, 1991
Term endedDecember 3, 2008
Patent numberCA 1292733 C
Classification (IPC)C07C2/26 +2 more

Timeline

Timeline From CIPO dates

1988199119941997200020032006Application filedAug 14, 1987Patent grantedDec 3, 1991Term endedDec 3, 2008

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