Process for preparing tetramethylthiuram tetrasulfide
CA 1088565 A · Owner: The Goodyear Tire & Rubber Company · Inventors: Lawrence, John P.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure Tetramethylthiuram tetrasulfide can be prepared in high yields by oxidation of an aqueous solution of dimethylammonium dimethyldithiocarbamate in the presence of carbon disulfide and sulfur. The process is essentially pollution free.
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
- Granted October 28, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 28, 1997.
- 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.