| 摘要 |
PURPOSE:To obtain a laminated sheet especially excellent in silver transfer resistance by taking a measure using a resin wherein an amino resin or the like is compounded with a specific compound as the first impregnating resin when a laminating material obtained by coating and impregnating a paper base material with a resin over two stages to dry the same is subjected to laminate molding. CONSTITUTION:A thermosetting resin laminated sheet is produced by coating and impregnating a paper base material with a resin over two stages and drying the impregnated one to obtain a laminating material and subjecting the laminating material to laminate molding. In this case, as the first impregnating resin, a resin obtained by compounding an amino resin or a phenol resin with a specific compound is infiltrated in the base material in the first stage and, thereafter, a thermosetting resin is applied and infiltrated. The specific compound is represented by general formula R1-CH-[(OR2)xOH]-CH[(OR2)yOH]-R3 {wherein R1 and R3 are -(CH2)n-CH3 or -(CH2)n-CN(n=5-15), R2 is -CH2-CH2- or -CH2-CH (CH3), x is 1-20 and y is 1-20}. |
