Novel epoxy compounds and functional fluid compositions containi

Details Novel epoxy compounds and functional fluid compositions containi Novel epoxy compounds and functional fluid compositions containi

1973-09-24

1976-05-18

Padgett, Benjamin R.

Compositions

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

Organic components

252 498, C10M 308

Patent

active

039576680

ABSTRACT:
Novel epoxides in the form of esters or polyesters of 4,5-epoxy-1,2-cyclohexane dicarboxylic acid, and functional fluid compositions containing said epoxides, such functional fluids consisting essentially of (1) a phosphate ester, e.g., dibutyl phenyl phosphate, or an amide of an acid of phosphorus, (2) a viscosity index improver, e.g., a polyglycol or polyglycol ether, or polyacrylate or polymethacrylate viscosity index improver, and (3) a small amount of the above novel epoxide, e.g., poly(ethylene-.DELTA..sup.4 -epoxy tetrahydrophthalate), such epoxide preventing acid build-up in the fluid, and preventing undesirable deposits particularly when such fluid is employed as an aircraft hydraulic fluid.

REFERENCES:
patent: 2853498 (1958-09-01), Phillips et al.
patent: 3637507 (1972-01-01), Gentit
patent: 3723320 (1973-03-01), Herber et al.

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