Process for preparing epoxy resins containing low levels of tota

Details Process for preparing epoxy resins containing low levels of tota Process for preparing epoxy resins containing low levels of tota

1985-09-09

1986-04-29

Nielsen, Earl

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

Synthetic resins

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

525523, 528489, 528 87, 549517, 549541, C08G 5914

Patent

active

045858381

ABSTRACT:
The total halide content of epoxy resins is reduced by heating a resin containing halide dissolved in a solvent mixture containing at least one ketone, at least one aromatic hydrocarbon and optionally at least one compound containing at least one aliphatic hydroxyl group in the presence of an alkali metal hydroxide for a time sufficient to reduce the total halide content.

REFERENCES:
patent: 2658885 (1953-11-01), D'Alelio
patent: 2848435 (1958-08-01), Griffin et al.
patent: 2943095 (1960-06-01), Farnham et al.
patent: 3121727 (1964-02-01), Baliker et al.
patent: 4447598 (1984-05-01), Caskey et al.
patent: 4485221 (1984-11-01), Krueger et al.

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