Title: Hydraulic fluid antioxidant system

Abstract: A hydraulic fluid comprising (1) a base stock material, and (2) a cycloalkyl epoxide and a phenyl naphthylamine in a ratio of from about 1:10 to about 10:1 by weight. By incorporating about 0.1 to about 10 percent by weight of the hydraulic fluid of said epoxide and amine in said hydraulic fluid, acid buildup therein is controlled.

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Other info:

Inventors: Gentit, William F. (Weston, CT, US)
Marolewski, Theodore A. (New City, NY, US)

Application Number: 441697
Filing Date: 1974-02-11
Publication_date: 1976-03-02
Assignee: Stauffer Chemical Company (Westport, CT)
Primary Class(es): 252/78.5 252/77, 252/403, 508/304
Other Classes:
US Patent Ref:

2862886	Dec, 1958	Davies et al.	252/78.
2930758	Mar, 1960	Tierney et al.	252/49.
2982734	May, 1961	Sprague et al.	252/78.
3019191	Jan, 1962	Furby et al.	252/78.
3048545	Aug, 1962	Critchley et al.	252/78.
3487020	Dec, 1969	Peeler	252/78.
3574117	Apr, 1971	Hotten	252/75.
3637507	Jan, 1972	Gentit	252/78.
3723320	Mar, 1973	Herber et al.	252/78.
3778376	Dec, 1973	Herber	252/78.

Other Refs:
Primary Examiner: Pitlick, Harris A.
Assistant Examiner:
Attorney: Rodman; Charles B.