Maleic anhydride-epoxy resin prepolymer, (vinyl or isopropenyl)p

Details Maleic anhydride-epoxy resin prepolymer, (vinyl or isopropenyl)p Maleic anhydride-epoxy resin prepolymer, (vinyl or isopropenyl)p

1990-02-05

1992-04-21

Bleutge, John C.

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

525903, C08L 6310

Patent

active

051069245

ABSTRACT:
An epoxy resinous composition suitable for impregnating windings of turbine generators comprises a reaction product of an epoxy resin and maleic anhydride combined with a vinyl monomer, a (vinyl or isopropenyl)phenyl glycidyl ether which co-reacts with the epoxy diester prepolymer formed from said reaction product, and the polymerized vinyl monomer, and an anhydride.

REFERENCES:
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patent: 3919348 (1975-11-01), Foster et al.
patent: 4013987 (1977-03-01), Foster
patent: 4017453 (1977-04-01), Heilman et al.
patent: 4038339 (1977-07-01), Foster
patent: 4085250 (1978-04-01), Smith
patent: 4173593 (1979-11-01), Smith et al.
patent: 4254351 (1981-03-01), Smith et al.
patent: 4284753 (1981-08-01), Hewitt, Jr.
patent: 4356417 (1982-10-01), Smith et al.
patent: 4652619 (1987-03-01), Nakajima et al.
Hashimoto et al., "Selective Vinyl Cationic Polymerization of Monomers With Two Cationically Polymerizable Groups II p-Vinylphenyl Glycidyl Ether: An Epoxy-Functionalized Styrene", Journal of Polymer Science; Part A: Polymer Chemistry, vol. 25, 2827-2838 (1987).

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