Polyether epoxy additives

Details Polyether epoxy additives Polyether epoxy additives

C - Chemistry, Metallurgy

08

G

402/169, 402/262

C08G 59/04 (2006.01) C08G 59/18 (2006.01) C08G 59/42 (2006.01) C08L 63/02 (2006.01)

Patent

CA 1114095

ABSTRACT OF THE DISCLOSURE Resistance to thermal shock of certain anhydride cured epoxy resins is unexpectedly enhanced by addition of certain polyether additives. This superior resis- tance 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 polyether diureide having terminal ureido groups or 2 polyether diamide having terminal amido groups and a molecular weight of from about 2000 to about 3000.

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