ACTIVATORS FOR THE PRODUCTION OF POLYURETHANE FOAMED MATERIALS

摘要

Activators with reduced volatility that are liquid at room temperature are obtained as the reaction product of (A) a secondary amine or primary alcohol having at least one tertiary amine group, (B) a polyisocyanate of the diphenylmethane series having a functionality of from 2.5 to 4.0 and an OH--functional reactive component capable of addition to isocyanate. These activators are useful for the production of polyurethane foams having improved emission behavior.