초록 ▼

A metal-working oil composition comprises as essential components thereof (a) one or more lube-oil components selected from the group consisting of oils, fats, mineral oils and fatty acid esters; and (b) one or more water-soluble polymer compounds selected from the group consisting of homopolymers o

A metal-working oil composition comprises as essential components thereof (a) one or more lube-oil components selected from the group consisting of oils, fats, mineral oils and fatty acid esters; and (b) one or more water-soluble polymer compounds selected from the group consisting of homopolymers of acrylic amide, copolymers of acrylic amide and other monomers and salts of the homopolymers and copolymers, the molecular weights of which homopolymers, copolymers and salts fall within the range of from 1,000 to 10,000,000. The incorporation of the specific water-soluble compound allows a lube-oil component to disperse stably as large droplets in water and hence, several advantages including thick and strong lubricating film suitable for use under severe machining conditions can be obtained.

대표청구항 ▼

An aqueous metal-working lubricating composition, consisting essentially of: a stable dispersion of oil in water of: (a) at least one lube-oil component selected from the group consisting of animal or vegetable oils or fats, mineral oils and fatty acid esters; and (b) at least one water-soluble poly

An aqueous metal-working lubricating composition, consisting essentially of: a stable dispersion of oil in water of: (a) at least one lube-oil component selected from the group consisting of animal or vegetable oils or fats, mineral oils and fatty acid esters; and (b) at least one water-soluble polymer compound selected from the group consisting of (1) a homopolymer of (meth)acrylamide, (2) a copolymer of (meth)acrylamide and another monomer, and (3) salts and quaternary ammonium salts of said homopolymer and copolymer, each having a molecular weight of from 1,000 to 10,000,000; wherein the other monomer is at least one monomer selected from the group consisting of monomers of formula (i) to (x), the salts thereof and monomers represented respectively by the following formulae (xi) to (xv): (i) [Figure] (I) wherein R1 is H or CH3, and R2 and R3 individually H or an alkyl group having 1 to 3 carbon atoms; (ii) [Figure] (II) wherein m1 is 1 to 3, n1 is 1 to 3, and R1, R2 and R3 are as defined in Formula (I); (iii) [Figure] (III) wherein R4 is H or C1-C3 alkyl or alkylol; and R1 is as defined in Formula (I); (iv) [Figure] (IV) wherein m2 and n2 are 0 to 3, and R1, R2 and R3 are as defined in Formula (I): (v) [Figure] (V) wherein A is －O－or －NH－, and R1, R2, R3 and n1 are as defined respectively in Formulas (I) and (II): (vi) [Figure] (VI) wherein R1, R2, R3 and n1 are as defined respectively in Formulas (I) and (II); (vii) [Figure] (VII) wherein R1 is as defined in Formula (I), and the positions of substitution of the pyridine are the 2nd and 4th-positions; (viii) [Figure] (VIII) wherein R1 and R2 are as defined in Formula (I), and the positions of substitution of the piperidine are the 2nd- or 4th-positions; (ix) [Figure] (IX) wherein R1, R2 and R3 are as defined in Formula (I); (x) ethyleneimine: (xi) ab2 to 20 carbon atoms.