Process for producing novolak-type epoxy resin

Details Process for producing novolak-type epoxy resin Process for producing novolak-type epoxy resin

1981-02-13

1983-01-11

Lieberman, Allan

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

Synthetic resins

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

525507, 528105, 528154, C08G 810, C08G 828

Patent

active

043682987

ABSTRACT:
A process for producing a novolak-type epoxy resin, which comprises reacting a halohydrin ether of a phenol compound with an aldehyde compound in the presence of an acid catalyst, and thereafter treating the product with a cyclizing agent to form an epoxy ring.

REFERENCES:
patent: 2390198 (1945-12-01), Voss et al.
patent: 2892809 (1959-06-01), St. Clair
patent: 3067171 (1962-12-01), Hoppe
patent: 3867346 (1975-02-01), Vargin et al.

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