| 摘要 |
PURPOSE:To obtain the subject composition producible at a low cost, having excellent flame-retardance and suitable for electrical apparatus, etc., by compounding a specific styrene monomer solution with an epoxy resin, a (meth) acrylate expressed by a specific formula and a radical curing catalyst at specific ratios. CONSTITUTION:The objective composition is produced by compounding (I) 100pts.wt. of a styrene monomer solution of a resin having double bond on side chain and consisting of (A) a main chain composed of a copolymer containing styrene monomer unit and maleic anhydride residue and (B) side chain composed of a (meth)acrylic acid ester having primary hydroxyl group and bonded to said main chain through an ester bond between said maleic acid residue and said hydroxyl group, wherein said solution is composed of 20-60wt.% of the main chain, >=10wt.% of the side chain and 20wt.% of styrene monomer, (II) 5-50pts.wt. of an epoxy resin, (III) 10-50pts.wt. of a bromine- containing (meth)acrylate of formula [R1 is H or (meth)acryloyl; R2 is H or methyl] and (IV) a radical curing catalyst. |
