Preparation of epoxy resins having low undesirable halogen conte

Details Preparation of epoxy resins having low undesirable halogen conte Preparation of epoxy resins having low undesirable halogen conte

1987-08-13

1988-10-18

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...

525385, 525534, 528 89, 528 90, 528 93, 528 95, 528405, 549514, 549515, 549516, 549517, C08G 5906, C08G 5908, C07D30127

Patent

active

047788631

ABSTRACT:
Glycidyl derivatives of compounds containing --OH, --NH.sub.2 and/or --COOH groups are prepared by reacting in the presence of a mixture of solvents, at least one of which is a polar aprotic solvent, an excess of an epihalohydrin with a compound containing --OH, --NH.sub.2 and/or --COOH groups while continuously or incrementally adding an alkali metal hydroxide to the mixture and removing water from the reaction by codistillation with epihalohydrin and the solvents.

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