Impregnated high voltage spacers for use with resin filled hose

Details Impregnated high voltage spacers for use with resin filled hose Impregnated high voltage spacers for use with resin filled hose

1981-06-01

1983-01-04

Lieberman, Paul

Electrical generator or motor structure

Dynamoelectric

Rotary

525126, H02K 346

Patent

active

043674259

ABSTRACT:
A compatible, gellable, dual resin system useful for impregnating porous spacers between stator end windings of turbine generators is made from (A) a liquid diallyl isophthalate component comprising an admixture of liquid diallyl isophthalate monomer and solid diallyl isophthalate prepolymer, where the weight ratio of monomer:prepolymer is between about 1.5:1 and about 3.0:1, (B) an amount of chain forming isocyanate terminated polyurethane prepolymer effective to provide a chain network which physically interpenetrates the liquid diallyl isophthalate component, and prevents free flow of liquid diallyl isophthalate component, (C) a chain extender for the isocyanate terminated polyurethane prepolymer, and (D) a catalyst for the diallyl isophthalate component, where the resin system is curable with the application of heat.

REFERENCES:
patent: 2427700 (1947-09-01), Atkinson et al.
patent: 2749460 (1956-06-01), Action et al.
patent: 2959699 (1960-11-01), Smith et al.

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