Liquid anhydride blends

Details Liquid anhydride blends Liquid anhydride blends

1980-02-21

1981-10-06

Nielsen, Earl A.

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

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

528365, 252182, C08G 5942

Patent

active

042936810

ABSTRACT:
An anhydride blend of from 7 to 25 weight percent methyl endomethylenetetrahydrophathalic anhydride and from 75 to 93 weight percent hexahydrophthalic anhydride which is liquid at room temperature and imparts excellent properties to epoxy resins cured with the blend including unexpectedly high impact strength.

REFERENCES:
patent: 2978435 (1961-04-01), Pfeffingen
patent: 3245916 (1966-04-01), Woskow
patent: 3247125 (1966-04-01), Woskow
patent: 3296202 (1967-01-01), Schmitz-Josten et al.
Bruins, Epoxy Resin Technology, Interscience, N.Y., 1968, pp. 71.noteq.72.

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