積層板用プリプレグの製造法

Manufacture of prepreg for laminate

Abstract

(57)【要約】 【課題】複数枚のプリプレグを重ねて加熱加圧成形する 積層板の製造において、プリプレグの積み重ね作業を効 率よく実施できるプリプレグを製造する。 【解決手段】長尺のシート状基材を複数枚重ねた状態で 移送しながら熱硬化性樹脂の含浸乾燥を実施する。そし て、前記複数枚のシート状基材が一体になっている状態 で所定寸法に裁断して積層板成形用のプリプレグとす る。熱硬化性樹脂を含浸する際のシート状基材の重ね枚 数は2ないし3枚が適当である。所定寸法に裁断したプ リプレグは、複数枚のシート状基材が一体になっている ので擬似的に1枚のプリプレグとして扱うことができ、 プリプレグの積み重ね作業の生産性が向上する。
PROBLEM TO BE SOLVED: To obtain prepregs for efficiently stacking prepregs in the case of manufacturing a laminate to be heated and pressure molded by superposing a plurality of the prepregs. SOLUTION: The method for manufacturing prepregs for a laminate comprises the steps of executing impregnating with thermosetting resin and drying it while feeding lengthy sheet-like base materials of stacked state, and cutting it in a predetermined size in the state a plurality of the materials are integrated. The superposing number of the materials in the case of impregnating it with the resin is suitably two to three. The prepregs cut in a predetermined size can be suspectedly handled as one prepreg since the plurality of the materials are integrated, and hence productivity of the stacking operation of the prepregs is improved. COPYRIGHT: (C)1998,JPO

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    JP-2006332578-ADecember 07, 2006Hitachi Chem Co Ltd, 日立化成工業株式会社Printed wiring board and its manufacturing method