| 摘要 |
PROBLEM TO BE SOLVED: To provide a reactive mixture for coating a molding by a reaction injection molding, containing at least 40 mass% of (meth)acrylate having at least two double bonds.SOLUTION: The reactive mixture contains at least one photoinitiator and at least one thermal initiator. The reactive mixture also contains at least one polymer selected from a group consisting of polymethyl methacrylate, polymethacrylmethyl imide, a styrene-acrylonitrile-copolymer, a styrene-maleic acid-copolymer and a polymethyl methacrylate copolymer to produce a molding having coating obtained by polymerizing (meth)acrylate having at least two double bonds, obtained by a reaction injection molding. The reactive mixture has 1 as maximum of an adhesive strength evaluation in a grid cutting test and 10% as maximum of a decrease in gloss at 20° in a scratch resistance test by ASTM1044(12/05). |
