Very low density molded polyurethane foams via iso

专利名称：Very low density molded polyurethane

foams via isocyanate- terminatedprepolymers

发明人：Andrew M. Thompson,James L. Lambach申请号：US08/544629申请日：19951018公开号：US05650452A公开日：19970722

摘要：Very soft, very low density, all water-blown polyurethane foams are preparedby reacting an isocyanate-terminated prepolymer with from 30% to 150% stoichiometricexcess of water. The foams have molded densities less than or equal to 1.5 lb/ft.sup.3and softness, as measured by 25% ILD of less than or equal to 15 lbs., yet retain excellentresiliency, tear strength and elongation. The foams are suitable for use in cushioningapplications such as those traditionally employing polyester fiberfill.

申请人：ARCO CHEMICAL TECHNOLOGY, L.P.

代理人：Jonathan L. Schuchardt

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