| 摘要 |
PURPOSE: A urethane-modified unsaturated acrylic resin is provided to have excellent weatherability and water resistance while maintaining basic coating properties like crack resistance, and to be suitably applied to paint for floor material. CONSTITUTION: A urethane-modified unsaturated acrylic resin is manufactured by urethane-reaction of a polyhydroxy acrylic resin and unsaturated urethane oligomer. The polyhydroxy acrylic resin(A) is a copolymer of a C1-12 alkyl(meth)acrylate monomer, a hydroxy group-containing (meth)acrylate monomer and ethylene unsaturated monomer. The unsaturated urethane oligomer is C1-12 alkyl(meth)acrylate monomer, isocyanate group-containing (meth)acrylate monomer, and a polymer of polyol containing hydroxy group in both ends. |
