High solids THEIC polyester enamels

Details High solids THEIC polyester enamels High solids THEIC polyester enamels

1983-12-01

1984-10-09

Griffin, Ronald W.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

427120, 4284228, 524539, 528279, 528289, B32B 1500, C08G 7316

Patent

active

044762798

ABSTRACT:
A high solids content, relatively low viscosity, organic solvent solution of polyester magnet wire enamel is described. The enamel is a tris (hydroxy-ethylisocyanurate) polyester having a ratio of hydroxyl to carboxyl groups of 1.65 to 2.0:1 and a hydroxyl number of 216 to 316. Such enamels are produced with solids contents of about 50 to about 70% by weight and viscosity less 1,500 cps at 200.degree. F. The method of making such enamel by reacting a glycol, tris (hydroxy-ethylisocyanurate), and an aromatic diacid or diester in the presence of a titanate catalyst is also described.

REFERENCES:
patent: 3249578 (1966-05-01), Meyer et al.
patent: 3342780 (1967-09-01), Meyer et al.
patent: 4105639 (1978-08-01), Laganis et al.
patent: 4116941 (1978-09-01), Hanson
patent: 4117032 (1978-09-01), Kwiecinski
patent: 4206261 (1980-06-01), Laganis et al.
patent: 4267231 (1981-05-01), Zamek
patent: 4404331 (1983-09-01), Pauze

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