Patent US 3,945,930

A lubricating composition for metal working comprising A. about 10 to 60% by weight of a water-soluble non-ionic surfactant component comprising at least one of PA1 I. a polyoxyalkylene glycol ester of a fatty acid represented by the general formula (I) EQU r.sup.1 coo(r.sup.2 o).sub.n H (I) or the general formula (II) EQU R.sup.1 COO(R.sup.2 O).sub.n OCR.sup.1 (II) PA1 ii. a polyoxyalkylene glycol ether of a fatty alcohol represented by the general formula (III) EQU R.sup.3 O(R.sup.2 O).sub.n H (III) PA1 iii. a polyoxyalkylene glycol ether of a fatty alcohol esterified with a fatty acid represented by the general formula (IV) EQU r.sup.3 o(r.sup.2 o).sub.n OCR.sup.1 (IV) and PA1 Iv. a polyoxyalkylene glycol condensate of a glyceride esterified with a fatty acid represented by the general formula (V) ##EQU1## wherein R.sup.1 CO represents a saturated or unsaturated fatty acid acyl group having about 12 to 22 carbon atoms; PA1 R.sup.1.sup.' co represents a saturated or unsaturated fatty acid acyl group having about 12 t0 22 carbon atoms and containing a hydroxy group; PA1 R.sup.2 represents an ethylene group; PA1 R.sup.3 represents an alkyl or alkenyl group having about 12 to 22 carbon atoms; PA1 R.sup.4 represents a hydrogen atom or a R.sup.1 CO group; PA1 n is an integer of about 10 to 20; and PA1 p, q, r, each is an integer with the sum of p, q and r ranging from about 25 to 40 when one or both of R.sup.4 is a hydrogen atom and from about 40 to 60 when R.sup.4 is a R.sup.1 CO group; B. about 10 to 40% by weight of an oil-soluble nonionic surfactant component comprising at least one of PA1 I. a polyoxyalkylene glycol ester of a fatty acid represented by the general formula (VI) EQU R.sup.1 COO(R.sup.5 O).sub.m H (VI) or the general formula (VII) EQU R.sup.1 COO(R.sup.5 O).sub.m OCR.sup.1 (VII) PA1 ii. a polyoxyalkylene glycol ether of a fatty alcohol represented by the general formula (VIII) EQU R.sup.3 O(R.sup.5 O).sub.m H (VIII) PA1 iii. a polyoxyalkylene glycol ether of a fatty alcohol esterified with a fatty acid represented by the general formula (IX) EQU R.sup.3 O(R.sup.5 O).sub.m OCR.sup.1 (IX) and PA1 Iv. a polyoxyalkylene glycol condensate of a glyceride esterified with a fatty acid represented by the general formula (X) ##EQU2## wherein R.sup.1.sup.' CO, R.sup.2, R.sup.3 and R.sup.4 are as defined above; PA1 R.sup.5 is an alkylene group having 2 to 4 carbon atoms PA1 m is an integer of about 1 to 5; and PA1 s, t and u each is an integer with the sum of s, t and PA1 u ranging from about 3 to 20; and C. about 10 to 50% by weight of an anionic or nonionic surfactant component comprising at least one of PA1 i. a phosphate ester and/or salt of a phosphate ester with the adduct of a polyoxyalkylene glycol, with an alcohol or an alkylphenol represented by the general formula (XI) the general formula (XII) ##EQU3## or the general formula (XIII) ##EQU4## wherein PA1 R.sup.2 is as defined above; R.sup.6 is an alkyl group, an alkenyl group or an alkaryl group having about 12 to 18 carbon atoms; PA1 M is an alkali metal atom, an alkylamine group or an alkanolamine group; PA1 a is an integer ranging from about 2 to 15; PA1 b and c each is an integer with the sum of PA1 b and c divided by 2 ranging from about 2 to 15; and c, d and e each is an integer with the sum of c, d and e divided by 3 ranging from about 3 to 10; and PA1 ii. an alkali metal salt, alkylamine salt and/or alkanolamine salt of a fatty acid represented by the general formula (XIV) EQU R.sup.1 COOM (XIV) wherein R.sup.1 CO and M are as above defined.