Process for producing epoxy-type-lacquer

Details Process for producing epoxy-type-lacquer Process for producing epoxy-type-lacquer

1984-01-26

1985-06-25

Griffin, Ronald W.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

523100, 523427, 528 89, 528104, C09D 352, C09D 358, C09D 366, C09D 376

Patent

active

045254974

ABSTRACT:
A process for producing an epoxy-type lacquer, which comprises reacting a liquid epoxy resin having about one bisphenol A skeleton on an average in the molecular chain and derived from bisphenol A and an epihalohydrin, with bisphenol A in the presence of a catalyst in an inert organic solvent to prepare a concentrated solution of an epoxy resin having a number average molecular weight of from 2,000 to 10,000, adding an organic solvent to the concentrated solution to dilute it and maintain it at a temperature lower than that at which the catalyst is active, and mixing the resulting diluted solution with a solution of a resin acting as a curing agent for the epoxy resin. The resulting lacquer is especially useful for coating metallic containers.

REFERENCES:
patent: 3931109 (1976-01-01), Martin
patent: 4151305 (1979-04-01), Davis et al.
patent: 4358578 (1982-11-01), Brownscombe

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