Patent ID: 9109079
Filing Date: 2015-08-18
Classification: C08G,C09D,H01B

Abstract:
1. A polyurethane wire enamel, wherein the enamel is present in cresol-free solution and is composed of: (A) from 10% to 60% by weight of at least one polyisocyanate adduct blocked with one or more alkylphenols which comprise a mixture of sec-butylphenols, (B) from 4% to 30% by weight of at least one hydroxy polyester optionally comprising at least one of imide groups and amide groups; (C) from 20% to 70% by weight of one or more hydrocarbon-based organic solvents which are composed exclusively of carbon and hydrogen, (D) from 1% to 20% by weight of one or more auxiliaries and additives, the sum of (A)+(B)+(C)+(D) being 100% by weight.