UNSATURATED POLYESTER RESIN COMPOSITION

摘要

PROBLEM TO BE SOLVED: To obtain an unsaturated polyester resin having improved gloss retention and yellowing resistance and provide its applied products. SOLUTION: This unsaturated polyester resin composition comprises (A) an unsaturated polyester and (B) a polymerizable unsaturated monomer comprising a styrene-based monomer and an acrylic monomer as main ingredients and its cured product has >=60% gloss retention (the gloss retention after 2000 hours exposure by a sunshine weatherometer according to the ISO standard).