Composite materials

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B - Operations, Transporting

29

C

B29C 33/40 (2006.01) B29C 70/60 (2006.01) B29C 70/66 (2006.01) B32B 3/20 (2006.01) B32B 5/16 (2006.01) B32B 18/00 (2006.01) H05B 6/00 (2006.01)

Patent

CA 2419049

New composite materials (12) having a high density of small particles (11), such as hollow microspheres, in a matrix material (13) are disclosed. The microspheres (11) are densely packed in the matrix material (13) such that adjacent microspheres (11) are positioned in contact with each other or very close together. Fiber flanking may be provided on the opposite sides of a layer of a core of composite material (12) having the small particles (11) and matrix material (13). Also disclosed are methods of making and using the composite materials.

Cette invention se rapporte à de nouveaux matériaux composites (12) ayant une densité élevée de petites particules (11), telles que des microsphères creuses, placées dans un matériau matrice (13). Ces microsphères (11) sont comprimées de façon dense dans le matériau matrice (13), pour que des microsphères adjacentes (11) se trouvent en contact l'une avec l'autre ou à proximité adjacente. Un encadrement à base de fibres peut être prévu sur les côtés opposés d'une couche d'un noyau du matériau composite (12) contenant les petites particules (11) et le matériau matrice (13). Cette invention concerne également des procédés de fabrication et d'utilisation de ces matériaux composites.

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