Abstract: Provided is a foamed urethane containing a cushion material, the foamed urethane containing a hard segment and a soft segment, in which the foamed urethane is a reaction cured product formed using an isocyanate component of an MDI compound. In a first aspect, a spin-spin relaxation time (T2) of the hard segment in the foamed urethane is from 20 ?sec to 40 ?sec, and a volume abundance ratio of the hard segment is from 5% to 40%. In a second aspect, a foamed urethane includes: a first region in which T2 of the hard segment is from 30 ?sec to 40 ?sec, and a volume abundance ratio of the hard segment is from 10% to 40%, and a second region in which T2 of the hard segment is from 20 ?sec to less than 30 ?sec, and a volume abundance ratio of the hard segment is from 5% to 40% in a H1 solid-state pulse NMR measurement, and which is adjacent to the first region.

Abstract: Provided is a foamed urethane containing a cushion material, the foamed urethane containing a hard segment and a soft segment, in which the foamed urethane is a reaction cured product formed using an isocyanate component of an MDI compound. In a first aspect, a spin-spin relaxation time (T2) of the hard segment in the foamed urethane is from 20 ?sec to 40 ?sec, and a volume abundance ratio of the hard segment is from 5% to 40%. In a second aspect, a foamed urethane includes: a first region in which T2 of the hard segment is from 30 ?sec to 40 ?sec, and a volume abundance ratio of the hard segment is from 10% to 40%, and a second region in which T2 of the hard segment is from 20 ?sec to less than 30 ?sec, and a volume abundance ratio of the hard segment is from 5% to 40% in a H1 solid-state pulse NMR measurement, and which is adjacent to the first region.

Abstract: A novel flexible polyurethane foam having good vibration characteristics and being excellent in occupant posture stability, is provided. A flexible polyurethane foam obtainable by reacting a high molecular weight polyoxyalkylene polyol or a polymer-dispersed polyol containing fine polymer particles in the high molecular weight polyoxyalkylene polyol, with a polyisocyanate compound in the presence of a catalyst, a blowing agent and a foam stabilizer, characterized in that as at least a part of the foam stabilizer, the following fluorinated compound (F) is used in an amount of from 0.

Abstract: A novel flexible polyurethane foam having good vibration characteristics and being excellent in occupant posture stability, is provided. A flexible polyurethane foam obtainable by reacting a high molecular weight polyoxyalkylene polyol or a polymer-dispersed polyol containing fine polymer particles in the high molecular weight polyoxyalkylene polyol, with a polyisocyanate compound in the presence of a catalyst, a blowing agent and a foam stabilizer, characterized in that as at least a part of the foam stabilizer, the following fluorinated compound (F) is used in an amount of from 0.

Abstract: A flexible polyurethane foam for a cushioning material, the flexible polyurethane foam comprising a polyol and an isocyanate as main components, and a fluoride surfactant as a cell regulator, wherein the fluoride surfactant has the structure of a perfluoroalkyl group, exhibits a foaming height of 3 mm or more in a toluene solution containing thereof in a concentration of 0.1% by mass or an aqueous ethanol solution in a concentration of 60% by mass five minutes after the toluene solution of the aqueous ethanol solution is stirred.

Abstract: A flexible polyurethane foam for a cushioning material, the flexible polyurethane foam comprising a polyol and an isocyanate as main components, and a fluoride surfactant as a cell regulator, wherein the fluoride surfactant has the structure of a perfluoroalkyl group, exhibits a foaming height of 3 mm or more in a toluene solution containing thereof in a concentration of 0.1% by mass or an aqueous ethanol solution in a concentration of 60% by mass five minutes after the toluene solution of the aqueous ethanol solution is stirred.

Abstract: A cushion is obtained by impregnating an aqueous polyurethane polymer emulsion in three-dimensionally interwined fibers, removing an excessive aqueous polyurethane polymer emulsion and hardening the resultant material with heat. The surface of each fiber is covered with a polyurethane resin, and the fibers are bonded by the polyurethane resin at intersected portions of the fibers.