Epoxy resin and the process for its production

Details Epoxy resin and the process for its production Epoxy resin and the process for its production

1983-01-14

1984-05-15

Nielsen, Earl A.

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

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

525471, 525534, 528 98, 528 99, 528106, 528109, 549517, 549556, C08G 5902, C08G 5924, C08G 5930

Patent

active

044489480

ABSTRACT:
An epoxy resin substantially represented by the general formula ##STR1## where Ar.sup.1 is a residual group of a dihydric phenol derived from a compound having one or two benzene nuclei, Ar.sup.2 is residual group of a halogen-substituted benzenoid compound having two halogen atoms on its nuclei and represented by the formula --Ar.sup.3 --Y--Ar.sup.4 -- where each of Ar.sup.3 and Ar.sup.4 is a hydrocarbon group having a divalent benzene nucleus and Y is a sulfone group or a carbonyl group, and n is an integer of from 1 to 50.

REFERENCES:
patent: 3733305 (1973-05-01), Loewrigkeit et al.
patent: 4296217 (1981-10-01), Stuart-Webb
patent: 4331798 (1982-05-01), Staniland
patent: 4360630 (1982-11-01), Smith

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