Preparation of propene
CA 2249019 A1 · Owner: Basf Aktiengesellschaft · Inventors: Schulz, Michael; Schwab, Peter
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A process for preparing propene and, a) reaction of 1-butene 2-butene and isobutene to give propene 2-pentene and, 2-methyl-2-butene in the presence of a metathesis catalyst comprising at least one compound of a metal of transition group VIb VIIb or VIII of the Periodic Table of, the Elements b) subsequent separation of the propene and 2-pentene/2-methyl-2-butene formed c) subsequent reaction of the 2-pentene and 2-methyl-2-butene with ethene to give propene, 1-butene and isobutene in the presence of a methathesis catalyst comprising at least one compound of a metal of transition group VIb VIIb or VIII of the, Periodic Table of the Elements d) subsequent separation of the propene and …
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
- Filed October 16, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 16, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 16, 2020.
- 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.