Process for the manufacture of dialkyl disulfides and polysulfides
CA 1329219 C · Owner: Buchholz, Bernard · Inventors: Hager, Robert B.; Dzierza, Edward J.; Buchholz, Bernard
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A process is disclosed for continuously preparing dialkyl disulfides and dialkyl polysulfides by reacting at elevated temperature and in the presence of a solid particulate catalyst an alkene and hydrogen sulfide in a first reaction zone, and then passing the reactor effluent into a second reaction zone where it is reacted at elevated temperature with molten, elemental sulfur in the presence of a solid, particulate catalyst.
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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 May 3, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 3, 2011.
- 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.