SHOCK-ABSORBING MEMBER, SHOCK-ABSORBING MEMBER FOR AUTOMATIC MOVEMENT DEVICE FOR PAINTING, AUTOMATIC MOVEMENT DEVICE WITH SHOCK-ABSORBING MEMBER, AND AUTOMATIC MOVEMENT DEVICE FOR PAINTING WITH SHOCK-ABSORBING MEMBER

摘要

A shock-absorbing member comprises a polyurethane foam body with a skin, the polyurethane foam body with a skin being provided with a foam layer and a skin layer formed on the surface of the foam layer. The polyurethane foam body with a skin contains essentially no silicon compounds. The foam layer is a polyurethane foam body obtained by reacting an isocyanate foam component and an active-hydrogen-group-containing foam component. The skin layer is a polyurethane resin layer obtained by reacting an isocyanate skin component including an aliphatic polyisocyanate and/or an alicyclic polyisocyanate with an active-hydrogen-group-containing skin component. The storage elastic modulus (E'_coat) of the skin layer at 23°C is 1×10⁷ Pa to 3×10⁸ Pa. The storage elastic modulus (E'_foam) of the foam layer at 23°C is 1×10⁵ Pa to 5×10⁶ Pa. The ratio (E'_coat/E'_foam) of the storage elastic modulus (E'_coat) of the skin layer at 23°C to the storage elastic modulus (E'_foam) of the foam layer at 23°C is 10-500.