Phosphate ester-based fire resistant hydraulic fluid containing

Details Phosphate ester-based fire resistant hydraulic fluid containing Phosphate ester-based fire resistant hydraulic fluid containing

1979-06-28

1981-11-03

Pitlick, Harris A.

Compositions

Heat-exchange, low-freezing or pour point, or high boiling...

Organic components

C10M 340

Patent

active

042984890

ABSTRACT:
A fire-resistant hydraulic fluid comprises (a) a phosphate triester derived from phenol, alkyl-substituted phenol or an alkanol, provided that the carbon atom number ratio of the aliphatic groups to the total of the ester is less than 0.25, and (b) 0.5 to 10% by weight, based on the weight of the triester, of an aliphatic polyester derived from an alkanedibasic acid having 3 to 24 carbon atoms and an alkylene glycol having 2 to 10 carbon atoms, said polyester having a molecular weight of 5,000 to 50,000. The fluid has an improved fire resistance and a high viscosity index.

REFERENCES:
patent: 2636861 (1953-04-01), Watson
patent: 3074889 (1963-01-01), Attwood et al.
patent: 3125529 (1964-03-01), Simmons et al.
patent: 3707500 (1972-12-01), Romano et al.
patent: 3956154 (1976-05-01), Marolewski et al.

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