Patent ID: 6383991
Filing Date: 2002-05-07
Classification: C10M,C10N

Abstract:
A cutting oil, comprising:(a) a polyether compound represented by the formula (I): R1O(EO)m(AO)nR2 wherein each of R1 and R2, which may be identical or different, is hydrogen atom or a hydrocarbon group having 1 to 24 carbon atoms, at least one of which is a hydrocarbon group; EO is oxyethylene group; AO is an oxyalkylene group having 3 or 4 carbon atoms; and each of m and n is 1 to 50, wherein a sum of m and n is from 4 to 100; and (b) silica particles having a particle size of a primary particle of between 5 nm or more and 50 nm or less.