Patent ID: 6462000
Filing Date: 2002-10-08
Classification: C10M,C10N

Abstract:
A process to prevent misting in water-based cooling lubricants comprising adding to said lubricants a copolymers containing structural units derived from the compounds of the formulae 1 and 2 in whichR1 and R2 are H, C1-C4 alkyl or, with inclusion of the Nâ€”COâ€” group, form a ring of 5, 6, 7 or 8 ring atoms which in addition to the Nâ€”COâ€” group may include further heteroatoms, R3 is H or C1-C4 alkyl, R4 is a branched or unbranched C1-C6 alkylene radical, and Y is an alkali metal or ammonium in amounts of from 0.01 to 2% by weight.