| 摘要 |
<p>A hardening resin composition prepared by adding, to at least one of the unsaturated polyester resins and epoxy-acrylate resins, substantially insocyanato group-free unsaturated acrylurethane having a weight-average molecular length of 100 66 or longer and being prepared by the addition reaction of a polymer having a terminal hydroxy group, poly-isocyanate, and monohydroxyalkyl monoacrylate or monomethacrylate in an effective amount to impart toughness. This hardening resin composition is used for cast moldings, paints, putty, adhesives, various linings and FRP. Addition of the unsaturated acrylurethane imparts sufficient toughness not heretofore available with conventional unsaturated polyester or epoxyacrylester hardened products. </p> |
