Vanadium-imido-phosphoraneiminato complexes for the polmerization of olefins
CA 2397902 A1 · Owner: Lemke, Martin · Inventors: Sundermeyer, Jorg; Arndt-Rosenau, Michael; Kipke, Jennifer
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to vanadium-imido-phosphoraneiminato compounds, to compositions containing vanadium-imidophosphoraneiminato compounds, which compositions are suitable especially as catalysts for the polymerization of olefins especially for, ethylene/propylene or ethylene/.alpha.-olefin copolymerization and the terpolymerization of those monomers with dienes.
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 August 13, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 13, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 13, 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.