EFFECT OF USING CHEMICAL MODIFIERS IN THE CURING OF POLYURETHANE FOAMS

摘要

An improved method and process for making a foam material, preferably a polyurethane foam material, more preferably a flexible foam material in which an additional additive is incorporated into the liquid foamable mixture. the additive is capable of undergoing or entering into an endothermic reaction of is capable of forming or decomposing into one or more gaseous products at a preselected temperature or over a preselected range of temperatures. The endothermic reaction or decomposition or production of gaseous product beneficially influences the properties of the foamed material when forming or when formed. The properties of the foam material produced by the improved method and process are more uniform, reproducible of foams produced by conventional formulations.