Additive for use in metal working

Details Additive for use in metal working Additive for use in metal working

1979-11-13

1981-05-19

Albrecht, Dennis L.

Compositions

Electrolytes for electrical devices

252 493, 252 498, 252 499, 252 74, 423305, 423307, C10M 110, C10M 302, C10M 304, C10M 504

Patent

active

042684048

ABSTRACT:
The invention relates to a long chain ammonium polyphosphate and its use as an effective additive in lubricants and/or coolants for metal working under extremely high pressures and temperatures. The polyphosphate chain preferably contains 50 to 1000 phosphorus atoms. Up to 20% of the ammonium groups are replaceable by hydrogen. The additive is preferably added to the lubricant/coolant in a proportion of 0.1 to 30 weight %.

REFERENCES:
patent: 2008939 (1935-07-01), Tufts
patent: 2432784 (1947-12-01), Miller
patent: 2999814 (1961-09-01), Laug
patent: 3186945 (1965-06-01), Graue
patent: 3645674 (1972-02-01), Heymer
patent: 3653821 (1972-04-01), Heymer
patent: 3723074 (1973-03-01), Sears
patent: 3775315 (1973-11-01), Smith
patent: 3978195 (1976-08-01), Schrodter

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