Process for producing a cycloolefin
CA 1256123 A · Owner: Asahi Kasei Kogyo Kabushiki Kaisha · Inventors: Fukuoka, Yohei; Mitsui, Osamu
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
By partially hydrogenating a monocyclic aromatic hydrocarbon in the presence of a specific ruthenium catalyst composed of a solid carrier comprising at least one rare earth element compound and supported, thereon, a ruthenium component various useful cyclo-, olefins can be produced not only in high yield but also in high selectivity, while enjoying the prolonged life of the catalyst.
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 June 20, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 20, 2006.
- 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.