SEMI-FINISHED PRODUCT AND PREFORM USED TO MANUFACTURE A PART MADE FROM COMPOSITE MATERIAL
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United States of America Patent
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Issued Date -
Jun 23, 2011
app pub date -
Dec 20, 2010
filing date -
Dec 22, 2009
priority date (Note) -
Abandoned
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Abstract
A semi-finished product used to mold a composite part including at least one dry laminar reinforcing layer that is designed to be impregnated with an impregnation matrix by liquid injection/infusion. The semi-finished product includes a thermoplastic layer, at least locally, where the properties of the component materials provide the future molded part, at least locally, with the required properties; since the thermoplastic layer has been stitched to at least one reinforcing layer using at least one yarn crossing through the perforations in said thermoplastic layer and in at least one reinforcing layer.
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