| 摘要 |
PURPOSE:To provide a resin composition having low odor and low heat-generation tendency, resistant to cracking, and having high mechanical strength, by adding dimethallyl o-phthalate, etc. to a radically polymerizable resin containing radically polymerizable unsaturated group at a specific ratio. CONSTITUTION:The objective composition is produced by mixing (A) 100pts.wt. of a radically polymerizable resin having 0.5-6 radically polymerizable unsaturated groups per molecular weight of 1,000 [e.g. a vinyl ester resin composed mainly of (meth)acrylic acid-modified epoxy resin, etc.] with (B) preferably 30- 150pts.wt. of dimethallyl o-phthalate and/or dimethallyl isophthalate, by conventional method. EFFECT:The working environment and the moldability can be improved. |
