METAL PROCESSING OIL STOCK SOLUTION COMPOSITION AND METAL PROCESSING OIL COMPOSITION

摘要

PURPOSE: To obtain a metal processing oil stock soln. compsn. which is excellent in lubricity and capability of dispersing a metal powder produced by wearing and is not acompanied by excessive foaming by compounding a base oil with a satd. fatty acid monoester of polyethylene glycol, an unsatd. fatty acid monoester of polyethylene glycol, a fatty acid, and a sarcoside each in a specified amt. ;CONSTITUTION: A base oil comprising at least one oil selected from among a mineral oil, a synthetic oil, and a fatty oil is compounded with 2-40 mass % (based on the resulting compsn.; and the same applies hereunder) satd. fatty acid monoester of polyethylene glycol represented by formula I (wherein R¹ is a 7-17C alkyl group; and m is 2-25) (A), 2-40 mass % unsatd. fatty acid monoester of polyethylene glycol represented by formula II (wherein R² is a 7-23C alkenyl group; and n is 2-25) (B), 0.4-8 mass % 8-24C fatty acid (C), and 0.4-8 mass % sarcoside represented by formula III (wherein R³ is a 8-24C alkyl or alkenyl group) (D) under the condition that the following relations are satisfied: a₁/b₁ is 0.2-5; a₁+b₁ is 5-60; c₁/d₁ is 0.2-5; and c₁+d₁ is 1-10 [wherein, a₁, b₁, c₁, and ₁ are the amts. (mass %) of ingredients A, B, C, and D, respectively].;COPYRIGHT: (C)1996,JPO