Corrosion inhibitor mixture for ammonium sulfate fire-retardant compositions and method for inhibiting corrosivity of such compositions
CA 1113237 A · Owner: Chemonics Industries, Inc. · Inventors: Crouch, Robert L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A corrosion inhibitor mixture for ammonium sulfatebased fire-retardant compositions is provided herein. The mixture includes a water-soluble cyanide compound and a water soluble ortho-phosphate compound. The components of the corrosion inhibitor system are present in a minor effective amount at least sufficient to inhibit the corrosivity of said fire-retardant composition to aluminum, mild steel and brass to less than 1 mil per year. This system reduces the corrosiveness of ammonium sulfate-based composition thereby to meet the corrosion specifcations for aerially applied fire-retardants.
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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 December 1, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 1, 1998.
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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.