Process for destruction of toxic organic chemicals and the resultant inert polymer by-product
CA 1339455 C · Owner: Adams, Harold W. · Inventors: Adams, Harold W.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention is a chemical process for complete destruction and safe disposition of hazardous organic chemicals such as Polychlorinated Biphenyl (PCB). The invention also comprises the process for production of an inert polymer formed of essentially equal parts of Carbon and Sulfur, and also comprises the new inert polymer itself and, articles made of the new polymer.This new polymer has many of the properties of refractory materials and is an inert non-inflammable cross-linked polymer that is relatively insoluble in all generally known solvents. In the process of the invention PCB and Sulfur are heated, in an atmosphere of Nitrogen at 500 to 1500°C. Waste gases including sulfur and …
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 September 9, 1997. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 9, 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.