Anchorable urethane foams

Claim 1

The method for deforming and anchoring a flexible polyurethane foam containing dispersed therein at least 50 parts by weight per 100 parts by weight of polyol in the formulation of said polyurethane of at least one solid thermoplastic resin composition fusible at a temperature below the fusion point of said polyurethane and composed of particles greater than 18 mesh (U.S. Sieve Series) and no larger than 21/2 mesh (U.S. Sieve Series), any of said solid termoplastic resin compositions outside this particle size range being present in a total amount no greater than 50 percent by weight based on the weight of said solid thermoplastic resin composition within said particle size range, the total of all of said solid thermoplastic resin compositions being no greater than 100 parts by weight per 100 parts by weight of said polyol, said method comprising: 1. deforming said foam by compression thereof; 2. subjecting said foam while under said compression to sufficient heat to fuse at least some of said thermoplastic resin composition within said particle range without significantly fusing or otherwise decomposing said foam; 3. causing said fused thermoplastic resin composition to solidify while said foam is under said compression; and 4. releasing said foam from said compression whereby said foam remains substantially as deformed as when under compression.

Claim 2

The method for deforming and anchoring a flexible polyurethane foam containing dispersed therein at least 50 parts by weight per 100 parts by weight of polyol in the formulation of said polyurethane of at least one solid thermoplastic resin composition fusible at a temperature below the fusion point of said polyurethane and composed of particles greater than 18 mesh (U.S. Sieve Series) and no larger than 21/2 mesh (U.S. Sieve Series), any of said solid termoplastic resin compositions outside this particle size range being present in a total amount no greater than 50 percent by weight based on the weight of said solid thermoplastic resin composition within said particle size range, the total of all of said solid thermoplastic resin compositions being no greater than 100 parts by weight per 100 parts by weight of said polyol, said method comprising: 1. deforming said foam by compression thereof; 2. subjecting said foam while under said compression to sufficient heat to fuse at least some of said thermoplastic resin composition within said particle range without significantly fusing or otherwise decomposing said foam; 3. causing said fused thermoplastic resin composition to solidify while said foam is under said compression; and 4. releasing said foam from said compression whereby said foam remains substantially as deformed as when under compression.