| 摘要 |
<p>PURPOSE:To prevent the appearance inferiority of the surface of a laminated sheet after a long laminated body is molded under heating and pressure by arranging long metal foils to the upper and under surfaces of a required number of long prepregs and further arranging long releasable films each having width almost same to that of each of endless steel belts to the outermost layers thereof. CONSTITUTION:Copper foils 2 coated with a resin are respectively arranged to the upper and under surfaces of seven long phenol resin impregnated papers l and polyester films 4 having the same width as endless steel belts 3 are further arranged to the outermost layers thereof to form a laminated body 5 which is, in turn, subjected to laminate molding for 20min by the endless steel belts 3. Thereafter, the polyester films 4 are removed to obtain a double-side copper- clad laminated sheet 7. By this method, the appearance inferiority of the laminated sheet 7 can be markedly suppressed.</p> |
