GREASE FOR FRICTION COUPLES Russian patent published in 1998 - IPC

FIELD: chemistry and petroleum chemistry, in particular, production of greases for friction units in machines and mechanisms; may be used in various industries. SUBSTANCE: grease contains mineral oil, polymer additives and antioxidants. Polymer additive is used in the form of polyethylene preliminarily exposed to effect of ionizing radiation. The offered grease includes, wt.%: radiated polyethylene, 5-15.0; antioxidant, 0.05-1.5; mineral oil, the balance. Antioxidant is used in the form of N, N′-di-β-naphthyl-para-phenylen-diame or 2-(3,5-di-tert- -butyl-4-hydroxyphenylpropionylhydrazino)-5-(3,5-di-tert- -butyl-hydroxyphennylethyl)-2,3-dihydro-1,2,3,4- -oxaphosphadiazol. EFFECT: higher antifriction properties due to formation of gel-like consistency to reduce wear of friction couples and consumption of lubricant; increased service life.