Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From phenol – phenol ether – or inorganic phenolate
Patent
1985-05-28
1986-04-15
Nielsen, Earl
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From phenol, phenol ether, or inorganic phenolate
525507, 528 94, 549517, C08G 5906, C08G 5908
Patent
active
045828920
ABSTRACT:
Epoxy resins are prepared by dehydrohalogenating the reaction product of a polyhydric phenol with an excess of an epihalohydrin in the presence of a quaternary ammonium compound wherein prior to dehydrohalogenation, the excess epihalohydrin is removed and an organic solvent is added and at least a portion of the dehydrohalogenation is conducted in the presence of added quantities of a quaternary ammonium compound.
REFERENCES:
patent: 2848435 (1958-08-01), Griffin et al.
patent: 2943096 (1960-06-01), Reinking
patent: 3121727 (1964-02-01), Baliker, Jr. et al.
patent: 3221032 (1965-11-01), Price et al.
patent: 3372142 (1968-03-01), Smith
patent: 4017523 (1977-04-01), Vargiu et al.
patent: 4273915 (1981-06-01), Soula et al.
patent: 4313886 (1982-02-01), Massingill
patent: 4390680 (1983-06-01), Nelson
patent: 4499255 (1985-02-01), Wang et al.
Chang Feng-Chih
Hearn, Jr. Robert L.
Heather Michael L.
Shirtum Robert P.
Carter J. G.
Nielsen Earl
The Dow Chemical Company
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