Titanium-containing catalyst composition and processes therefor and therewith
CA 2366946 A1 · Owner: Schulte, Heiner · Inventors: Schulte, Heiner; Mcbride, Edward Francis; Do, Hiep Quang
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention relates to a catalyst composition comprising an organic titanium compound, a complexing agent, a phosphorus source a solvent, and , optionally a cocatalyst a process for preparing the composition and use thereof in esterification, transesterification polymerisation or combinations , thereof. The complexing agent is selected from hydroxycarboxylic acids and aminocarboxylic acids, or combinations thereof the phosphorus is selected , from phosphonic acid phosphinic acid, a phospine or combinations thereof. The cocatalyst can be a cobalt/aluminium catalyst and antimony compound, or , combinations thereof; a sulfonic acid may be present. In examples a composition of …
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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 April 20, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 20, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 20, 2021.
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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.