| 摘要 |
PROBLEM TO BE SOLVED: To provide a laminate that is manufactured with a high productivity and excellently blanked and its manufacturing process. SOLUTION: The manufacturing process for the laminate comprises the first step in which a woven glass fabric is coated with the first resin varnish containing a bisphenol epoxy resin and a novolac resin, the second step in which a nonwoven glass fabric is laid on the glass fabric and heated, the third step in which the nonwoven glass fabric is coated with the second resin varnish containing the bisphenol epoxy resin, the novolac resin, a novolac resin having a specific molecular weight and an inorganic filler and heated, the fourth step in which a prepreg is obtained by impregnating the fabrics with the third resin varnish containing the bisphenol epoxy resin and the novolac resin from the side of the nonwoven glass fabric and a step in which two sheets of the prepreg are laid with one sheet on the other in a way that the nonwoven fabrics stay inside, heated and pressed. COPYRIGHT: (C)2004,JPO&NCIPI |
