Isomerization
CA 1183875 A · Owner: Polysar International S.A. · Inventors: Hansen, Robert; Adams, John R.; Gelbein, Abraham P.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
ISOMERIZATION, Abstract of the Disclosure A process is provided for the skeletal isomerization of straight chain olefins to branched chain olefins wherein the olefin is contacted with an activated alumina catalyst which has a particle size of from about 0.5x10-3cm to about 160x10-3cm and at least 10% of the pore volume is attributable to pores having radii between about 100 and 10,000 Angstroms.
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 March 12, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 12, 2002.
- 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.