METHOD FOR PRODUCING LAMINATE, AND LAMINATE
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United States of America Patent
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Issued Date -
Apr 25, 2013
app pub date -
Sep 14, 2012
filing date -
Oct 21, 2011
priority date (Note) -
Abandoned
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Abstract
The object of the present invention is to provide a laminate superior in dimensional stability, a method for the production thereof, and a circuit substrate using the laminate. There is disclosed a method for producing a laminate, the method including a first step of impregnating a fiber sheet with a liquid composition containing a liquid crystalline polyester and a solvent, and then removing the solvent contained in the fiber sheet to form a resin-impregnated sheet; a second step of stacking a plurality of the resin-impregnated sheets to form an insulative substrate, and then hot press treating the insulative substrate to form a laminated substrate; and a third step of heat treating the laminated substrate at a temperature within the range of from the glass transition temperature of the laminated substrate to the temperature of the glass transition temperature +150° C.
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