Improved semi-finished product and preform used to...

Details Improved semi-finished product and preform used to... Improved semi-finished product and preform used to...

B - Operations, Transporting

32

B

B32B 5/10 (2006.01) B32B 27/08 (2006.01)

Patent

CA 2723104

This invention is related to 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, characterized in that it 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 said 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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