Patent ID: 6352962
Filing Date: 2002-03-05
Classification: C10M,C10N

Abstract:
An additive for a traction drive fluid obtained by heating (A) at least one ester selected from an acidic phosphate ester and a phosphite ester represented by the general formula (I): wherein A represents a hydrogen atom or a hydroxyl group, m is 0 or 1, when m is 0, A is a hydroxyl group, and when m is 1, A is a hydrogen atom or a hydroxyl group, R1 and R2 each independently represent a hydrogen atom, or a hydrocarbon group having a 1 to 18 carbon atoms that contains at least one selected from an oxygen atom and a sulfur atom, R1 and R2 may be the same or different, but both R1 and R2 are not simultaneously hydrogen atoms; and (B) a succinimide dispersant containing boron at a temperature of 120 to 150Â° C. for 5 hours or more.