Composition for low-foaming urethane resin and low-foaming urethane resin

摘要

PROBLEM TO BE SOLVED: To provide a urethane foam resin which exhibits favorable results in shock absorption performance and vibration damping performance even when a high load is applied or a time elapses in the state of receiving a high load, and a composition for the urethane foam resin. Offering things. SOLUTION: In a composition for a urethane foam resin containing the following (A) polyol component and (C) water, the (A) polyol component has (A-1) a number of functional groups of 3.0 and a molecular weight of 5000 to 5000. Includes a polymer polyol containing 40 to 60% of polymer particles having an average particle size of 0.7 μm or more and less than 1.0 μm, and (A-2) a polyether polyol having 3 functional groups and a molecular weight of 3000. , (C) A composition for a urethane foam resin, characterized in that the content of water is 0.15% by mass or less. [Selection diagram] Fig. 1