首页>
外国专利>
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
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
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 × 107Pa or more and 3 × 108Pa or less, the foam layer has a storage modulus at 23°C (E'foam) of 1 × 105Pa or more and 5 × 106Pa 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.
展开▼
