Patent ID: 10913251

Abstract:
A buffer material including a skinned polyurethane foam including a foam layer and a skin layer formed on the surface of the foam layer, wherein the skinned polyurethane foam essentially contains no silicone compound, the foam layer is polyurethane foam, the skin layer is a polyurethane resin layer produced by reaction of a skin-isocyanate component containing an aliphatic and/or an alicyclic polyisocyanate with a skin-active hydrogen group-containing component, the skin layer has a storage modulus at 23° C. (E′coat) of 1×107 Pa or more and 3×108 Pa or less, the foam layer has a storage modulus at 23° C. (E′foam) of 1×105 Pa or more and 5×106 Pa or less, and the ratio (E′coat/E′foam) of the storage modulus at 23° C. (E′coat) of the skin layer relative to the storage modulus at 23° C. (E′foam) of the foam layer is 10 or more and 500 or less.