C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
310/106, 310/108
C08L 75/08 (2006.01) C08L 31/08 (2006.01) C08L 75/04 (2006.01) H02K 3/46 (2006.01) H02K 3/50 (2006.01)
Patent
CA 1188842
ABTRACT OF THE DISCLOSURE A compatible, gellable, dual resin system useful for impregnating porous spacers between stator end wind- ings 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 mono- mer:prepolymer is between about 1.5:1 and about 3.0:1, (B) an amount of chain forming isocyanate terminated polyure- thane prepolymer effective to provide a chain network which ohysically interpenetrates the liquid diallyl isoph- thalate component, and prevents free flow of liquid diallyl isophthalate cmponent, (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.
403928
Mendelsohn Morris A.
Navish Francis W. Jr.
Oldham And Company
Westinghouse Electric Corporation
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