Low coefficient of friction magnet wire enamels

摘要: An improved thermally stable, lubricious magnet wire enamel is disclosed which particularly suitable for use as an outermost insulating, lubricating layer on a substrate. The comprises the reaction product of tri-basic acid anhydride, diisocyanate and polyfunctional organosiloxane. coating has coefficient friction, after application to wire, less than 0.10. It also substantially all organosiloxane reacted, i.e. no capable being extracted from cured with organic solvents.