| 摘要 |
PURPOSE:To form a curable resin compsn. which has good weather resistance and hardly causes yellowing even under temperature conditions exceeding 100 deg.C during curing by heating, by blending a system consisting of a vinyl polymer having a basic nitrogen atom and a polyepoxy compd. with a compd. having a hydroxyl group attached to a phosphorus atom. CONSTITUTION:A composition contains a vinyl polymer (A) having a basic nitrogen atom, a polyepoxy compd. (B) and a compd. (C) having a hydroxyl group attached to a phosphorus atom. As the component (A), copolymers obtd. by copolymerizing a vinyl monomer having a tert-amino group with a vinyl monomer copolymerizable therewith [e.g., (meth)acrylic esters] are preferred. As the component T, polyglycidyl ethers of aliph. polyhydric alcohols and vinyl polymers having epoxy groups on side chains are preferred from the viewpoint of weather resistance. As the compnent C, at least one member selected from among phosphoric acid and its esters, polyphosphoric acid, phosphorous acid and its esters and phosphonic acid and its esters is used.
|
