Polyimide modified epoxy resins in aqueous emulsions for laminat

Details Polyimide modified epoxy resins in aqueous emulsions for laminat Polyimide modified epoxy resins in aqueous emulsions for laminat

1985-10-09

1988-07-26

Ivy, C. Warren

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

Synthetic resins

Processes of preparing a desired or intentional composition...

523414, 528 96, 5281113, 528114, C08G 5962, C08G 5946, C08G 5944, C08L 6300

Patent

active

047601051

ABSTRACT:
Disclosed in an emulsion having a discontinuous phase that consists of a water dispersed or water emulsified epoxy resin in water having at least two epoxide groups, a water soluble salt of an imide compound having at least one carboxyl group, and a crosslinking agent; the discontinuous phase has excess epoxide functionality. The continuous phase is water. A method of forming a coating on a conductive substrate is also disclosed. The substrate and an electrode are immersed into the emulsion and a direct current is applied between the substrate and the electrode to electrophoretically deposit a coating on the substrate of the epoxy resin, the imide compound, and the crosslinking agent. The substrate is removed from the emulsion and is heated to a temperature sufficient to cure the coating.

REFERENCES:
patent: 4130469 (1978-12-01), McGinnis
patent: 4384946 (1983-05-01), Patzschke

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