Boron tris-(dialkyl-dithiocarbamates) and a process for their preparation
CA 1306264 C · Owner: Dr. Spiess Chemische Fabrik Gmbh & Co. · Inventors: Himmelreich, Rolf; Spiess, Wolfram
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
1. Boron tris-(dialkyl-dithiocarbamate) of the general formula, (I), wherein R and R' represent the same or different branchedor straight-chain saturated or unsaturated alkyl radicals having from 1 to 16 carbon atoms and a process for preparing the same, comprising reacting 3 moles of an alkali dialkyldithiocarbamate of the general formula + Me, wherein R and R' are as defined in claim 1 and Me represents Na , K or NH4 with one mole boron tribromide boron trichloride or boron trifluoride in an inert medium, separating the so-formed alkali metalor ammonium halide and isolating the boron tris-(dialkyl-dithiocarbamate). The new boron dithiocarbamates are suitable as additives for hydraulic …
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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
- Granted August 11, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 11, 2009.
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Timeline
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Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.