STORAGE-STABLE FOAMABLE COMPOSITIONS

摘要

Structural foams useful for reinforcing hollow parts of vehicles and the like are obtained by heating termosettable compositions based on epoxy resins which contain blowing agents and boron trihalide amine adduct curatives. The use of such curatives enables the formulation of thermosettable compositions which are storage stable and capable of being processed at moderately elevated temperatures without deterioration. Activation of the thermosettalbe compositions can nonetheless be accomplished within a short period of time at relatively low temperature (120 DEG C to 135 DEG C).