INSULATING VARNISH Russian patent published in 1994 - IPC

FIELD: polymer chemistry. SUBSTANCE: insulating varnish for enameling wires contains polyesterisocyanuratimide resin, tricresol, xylene, polybutyl titanate and N-(2,3-dihydroxypropyl)-5,5-dimethyl hydantoin in the following amounts, mas.%: polyesterisocyanuratimide resin 35.00-45.00; N-(2,3-dihydroxypropyl)-5,5-dimethyl hydantoin 3.50-4.50; tricresol 46.00-40.00; xylene 14.25-8.00; polybutyl titanate 1.25-1.60. EFFECT: higher operate reliability of wire insulation due to its increased mechanical strength, resistance to pressing-through at elevated temperatures and heat shocks. 2 tbl