Bis ureide of a polyoxyalkylene polyamine as an epoxy additive

Details Bis ureide of a polyoxyalkylene polyamine as an epoxy additive Bis ureide of a polyoxyalkylene polyamine as an epoxy additive

1977-06-30

1979-02-27

Lee, Lester L.

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

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

156330, 528111, 528113, 260823, C08G 5948

Patent

active

041418859

ABSTRACT:
The resistance to thermal shock of anhydride cured epoxy resins is improved by the addition of a bis ureide of a polyoxyalkylene polyamine additive. The heat deflection properties of the epoxy resins are not appreciably compromised by the addition of the additive. The improved epoxy resin composition comprises a vicinal polyepoxide, an effective amount of a substituted bicyclic vicinal anhydride curing agent and an effective amount of a thermal shock resistance improving additive consisting essentially of a bis ureide of a polyoxyalkylene polyamine, said additive having an average molecular weight of at least 4,000.

REFERENCES:
patent: 3324176 (1967-06-01), Kirschnek et al.
patent: 3386955 (1968-06-01), Nawakowski et al.
patent: 3717612 (1973-02-01), Babayan
patent: 4002598 (1977-01-01), Waddill

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