PROCESS FOR DIMERIZING .alpha.-OLEFINS
CA 1284512 C · Owner: Schoenthal, Galeon Wayne · Inventors: Schoenthal, Galeon Wayne; Slaugh, Lynn Henry
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Process for preparing .alpha.-olefins CH2=C(R)CH2CH2R R being, C1-30-alkyl, cycloalkyl or cycloalkenyl by dimerizing .alpha.-olefins, CH2=C(R)H at -60 to +280 °C, with a catalyst comprising a) a metallocene (cyclopentadienyl)2MY2, M being Zr or Hf and Y being H halogen, C1-5-alkyl or C6-20-aryl, and b) an alumoxane using an, atom ratio Al to M from 1 to 100.
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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 May 28, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 28, 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.
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.