Richard D. Peffley

High Resiliency Polyurea Foam-An Improved Flexible Foam Matrix

It is likely that the development of urea technology for flexible seating foam applications has been hindered simply by a perceived incompatibility between the rapid isocyanate-amine reaction and the traditional «long» gel time foam processing requirements. We will show that the amine-isocyanate reaction rate can be controlled, thereby making urea technology useful in flexible foam applications. Conventional processability evaluations on low pressure metering equipment have shown that amine terminated polyether resins can be used in place of conventional polyols in typical foam formulations without jeopardizing desirable processing parameters. In addition, nonpolymer polyol reinforced polyurea foam matrixes have hardness properties comparable to or better than conventional polymer polyol filled urethane foams