Process for producing .alpha.-olefin
CA 2391143 A1 · Owner: Fuji, Junichi · Inventors: Fuji, Junichi; Nakayama, Osamu; Onishi, Takashi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A production process for .alpha.-olefins making use of elimination reaction of a primary alcohol or an ether is characterized by use of an alumina catalyst in the presence of an amine. The production process for .alpha. -olefins according to the present invention can yield an .alpha.-olefin at a high proportion with respect to the entire olefin products and can maintain the reactivity of the catalyst and selectivity of the products for a prolonged time. In the process, unreacted material and ether intermediate byproduct produced in the process can be used in the reaction with the same catalyst. This allows industrially and environmentally favorable production process of .alpha.-olefins.
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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
- Filed June 21, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 21, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 21, 2024.
- 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.