| abstract |
The invention provides a phenol resin composition, a thermosetting resin composition in excellent liquidity, and a cured product excellent in heat resistance, wet resistance, and adhesiveness. The solution is that the phenol resin composition contains 30% to 80% by weight of (A)phenolic resin, and 20% to 70% by weight of (B) hydroxyl flavane compound. The phenol resin is in the structure represented in formulas (I)-(III). The hydroxyl flavane compound is represented by formula (IV), wherein R1-R3 are C1-C10 alkyl groups, C1-C10 alkoxy group, and hydroxyl, a-d are 0-3, R0 is hydrogen atom, C is a 1-5 alkyl group, Rm is C1-C10 alkyl group, C1-C10 alkoxy group, and hydroxyl, R4, R7, R8 are C1-C10 alkyl groups, C5-C10 naphthenic bases, etc, W1, X1, Y1, Z1, W2, X2, Y2, Z2 are hydrogen atoms, hydroxyl, C1-C10 alkyl groups. |