| 摘要 |
PURPOSE:To obtain the titled molding material having excellent moldability and forming no burn mark in molding, by compounding specific amounts of an organic peroxide and a liquid having a boiling point of <=90 deg.C to a molding material composed of a bismaleimide, an aromatic diamine and glass fiber. CONSTITUTION:A molding material composed of (A) a bismaleimide (e.g. maleic acid N,N'-ethylenebisimide), (B) an aromatic diamine (e.g. 4,4'-diami nodiphenylmethane) and (C) glass fiber at a molar ratio (A/B) of 2-5 is com pound with (D) 0.2-2pts.wt. of an organic peroxide (e.g. benzoyl peroxide) based on 100pts.wt. of the component A. The obtained composition is further compounded with (E) 0.5-10wt% liquid having a boiling point of <=90 deg.C (e.g. methanol). The addition of the component E is effective in preventing the forma tion of burn mark in molding. |
