Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From phenol – phenol ether – or inorganic phenolate
Patent
1978-03-30
1979-09-25
Ziegler, J.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From phenol, phenol ether, or inorganic phenolate
528 93, 528 94, 528111, 528113, 528367, C08G 5948
Patent
active
041691776
ABSTRACT:
Resistance to thermal shock of certain anhydride cured epoxy resins is unexpectedly enhanced by addition of a diamide of a polyoxyalkylenepolyamine-urea condensate. This superior resistance does not appreciably compromise heat deflection properties. The resins comprise a vicinal polyepoxide, a curing amount of a certain bicyclic anhydride and an effective amount of a diamide of a polyoxyalkylenepolyamine-urea condensate having a molecular weight of from about 4000 to 4500.
REFERENCES:
patent: 2839480 (1950-07-01), Ott
patent: 3336415 (1967-08-01), Kennedy
patent: 3591556 (1971-07-01), Godfrey et al.
patent: 4002598 (1977-01-01), Waddill et al.
"Epoxy Resins," Lee-Neville, 1957, McGraw-Hill Book Co., Inc., N. Y., p. 110.
Schulze Heinz
Waddill Harold G.
Priem Kenneth R.
Ries Carl G.
Texaco Development Corp.
Whaley Thomas H.
Ziegler J.
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