Methods for treating hydrocarbon recovery operations and industrial waters
CA 1340691 C · Owner: Petrolite Corporation · Inventors: Thompson, Neil E.S.; Asperger, Robert G.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Nitrogen-containing dithiocarbamic acids are used as reverse demulsifiers corrosion and scale inhibitors, flocculants biocides, flotation aids, water, clarifiers interface control agents and antifoaming agents. The compounds having novel use in the methods of the present invention are generically represented by the following formulas: (see formula 1), wherein:, R represents an organic radical; R1 and R2 each independently represents an organic radical which may be the same or different for each representation of R1 and R2; R3 and R6 each independently represents H or an organic radical which may be the same or different for each representation of R3 and R6; R7 represents a cation;, Re …
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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 3, 1999. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 3, 2016.
- 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.