Catalyst composition comprising a metal carboxylate
CA 2432657 A1 · Owner: Kuo, Chi-I · Inventors: Ackerman, Steven K.; Kuo, Chi-I; Zhang, Simon X.
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 a composition of a carboxylate metal salt in combination with a heated polymerization catalyst to improve the flowability and operability of the catalyst. The invention also relates to methods for preparing the catalyst composition and to its use in a polymerization process.
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 November 26, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 26, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 26, 2023.
- 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.