Fibrous structure which is used to produce composite materials

D - Textiles – Paper – 04 – H

Patent

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D04H 13/00 (2006.01) B29C 70/16 (2006.01) B29C 70/54 (2006.01)

Patent

CA 2473118

The invention relates to a fibrous structure, particularly of glass, comprising at least one layer of randomly-distributed filament yarns and at least one reinforcing textile layer such as a layer of chopped strands. The different layers in the structure are interconnected using a mechanical means, such as stitching or needle punching, and/or a chemical means such as a binder. The inventive structure can be produced in a continuous or discontinuous manner. Said structure possesses good permeability and good deformability when it is used to produce a composite material.

L'invention concerne une structure fibreuse, notamment en verre, comprenant au moins une couche de fils continus répartis de façon aléatoire et au moins une couche textile de renfort comme une couche de fils coupés, les différentes couches de la structure étant reliées entre elles par un moyen mécanique comme une couture ou un aiguilletage et/ou un moyen chimique comme un liant. Cette structure peut être réalisée en continu ou en discontinu. Elle présente une bonne perméabilité et une bonne déformabilité lorsqu'elle est mise en oeuvre pour la réalisation d'un matériau composite.

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