Abstract: Preparing a flexible, polyurethane foam:(a) placing a polyol polyurethane foam-forming reaction mixture in a reaction zone and allowing the mixture to rise, thereby forming a partially cured cellular material,(b) applying a compressive force to the partially cured cellular material after the elapsing of a period of time after completion of the rise to thereby reduce the volume of the partially cured cellular material, and(c) removing the compressive force and completing the cure of the compressed cellular material.The cellular material has enhanced cushioning properties including a unique and superior feeling of comfort resulting from a soft touch yet with a deep firm support with an appropriate springiness to the foam. The polyol in the polyurethane foam-forming reaction mixture contains a mixture of(d) from 90-10 parts by weight of a polymer-polyol composition containing about 10-40% polymer solids, and(e) from 10-90 parts by weight of a base polyol having a molecular weight of at least 4500 up to 7000.

Abstract: A tempered resilient wire forms an upholstery coil spring which has a plurality of interconnected turns, with the top turn being a closed flat loop extending upwardly from the rear of the spring at a given angle to the horizontal, a second turn located immediately below the top turn and being inclined upwardly from the rear of the spring at an inclination angle which is less than the inclination angle of the top turn, a plurality of intermediate turns located below the second turn, and a flat base turn for resting on a support surface.