发明名称 |
A METHOD OF MAKING A COMPOSITE LAMINATE AND A PWB SUBSTRATE SO MADE |
摘要 |
<p>The invention relates to a method of making a composite laminate comprising the steps of providing unidirectionally oriented parallel fibres (UD filaments) (3) with a resin matrix to form a composite UD layer and laminating a plurality of UD layers to form a UD crossply laminate (18). In the method of the invention, the UD filaments are impregnated with a melt of a resin which in the uncured form solidifies below a certain temperature (Tm). Thereupon the UD filaments-containing resin is cooled to a temperature below Tm to produce said composite UD layer. The produced composite UD layer is irreversibly cured before or after lamination. Notably latent curing resins are suitable. The impregnation is preferably conducted by coating a process belt (8) with solid resin (6), laying the UD filaments onto the resin, and heating the resin so as to form the resin melt. The heating of the resin is preferably conducted by means of IR irradiation (11).</p> |
申请公布号 |
WO9520475(A1) |
申请公布日期 |
1995.08.03 |
申请号 |
WO1995EP00273 |
申请日期 |
1995.01.25 |
申请人 |
AKZO NOBEL N.V.;MIDDELMAN, ERIK |
发明人 |
MIDDELMAN, ERIK |
分类号 |
B32B5/28;B29B15/12;B29C70/10;B29C70/44;B29C70/50;H05K1/03;H05K3/00;H05K3/02;(IPC1-7):B29B15/12 |
主分类号 |
B32B5/28 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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