Ultra-high solids theic polyester enamels

Details Ultra-high solids theic polyester enamels Ultra-high solids theic polyester enamels

1987-09-30

1990-10-30

Ivy, C. Warren

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

Synthetic resins

Processes of preparing a desired or intentional composition...

524539, 524590, 524602, 528289, C08L 0000

Patent

active

049669320

ABSTRACT:
An ultra-high solids content, organic solvent solution of polyester magnet wire enamel is described. The enamel is a tris (2-hydroxy-ethyl) isocyanurate 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 greater than 70% by weight and viscosity less than 3,000 cps at 160.degree. C. The method of making such enamel by reacting a glycol, tris (2-hydroxy-ethyl) isocyanurate, and an aromatic diacid or diester, reacting this polymer with modifying phenolic and polyisocyanate and adding an aromatic titanate catalyst is also described.

REFERENCES:
patent: 4476279 (1984-10-01), McGregor

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