Organotin preparations, a process for their production and the use thereof
CA 2061032 A1 · Owner: Hoenig, Helmut · Inventors: Paar, Willibald; Hoenig, Helmut
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to organotin compositions to a process for their production, and to their use in catalyzing the crosslinking reactions of cationic paint binders crosslinkable by transesterification and/or transurethanization and/or by the reaction of terminal double bonds. The organotin compositions are prepared by dispersion of dibutyltin oxide in a dispersion medium comprising at least one substituted oxazolidine compound and, if appropriate spe-, cially chosen water-tolerant organic solvents. Cationic paints, especially cathodically depositable electrocoating paints, catalyzed by the organotin compositions have very good sedimentation stability in dilute paint batches and show no …
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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 February 11, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 11, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 11, 2014.
- 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.