Very low density molded polyurethane foams via...

Details Very low density molded polyurethane foams via... Very low density molded polyurethane foams via...

C - Chemistry, Metallurgy

08

G

C08G 18/10 (2006.01) C08G 18/48 (2006.01)

Patent

CA 2188197

Very soft, very low density, all water-blown polyurethane foams are prepared by reacting an isocyanate-terminated prepolymer with from 30% to 150% stoichiometric excess of water. The foams have molded densities less than or equal to 1.5 lb/ft3 and softness, as measured by 25% ILD of less than or equal to 15 lbs., yet retain excellent resiliency, tear strength and elongation. The foams are suitable for use in cushion- ing applications such as those traditionally employing polyester fiberfill.

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