Patent ID: 6521148
Filing Date: 2003-02-18
Classification: B29C,Y10T

Abstract:
A method of producing a three-dimensionally reinforced cellular matrix composite comprising the steps of:(a) providing a three-dimensional textile structure preform comprising at least a first system of yarns extending along a first direction, a second system of yarns extending along a second direction, and a third system of yarns extending along a third direction, wherein the first, second and third systems of yarns define a plurality of interstices within said textile structure; (b) introducing a foamable polymer material to said three-dimensional textile structure preform so as to fill the interstices and impregnate said three-dimensional textile structure preform and coat at least a portion of the surface area of said three-dimensional textile structure; and (c) foaming said foamable polymer material to produce a cellular polymer material containing a plurality of voids or cells distributed substantially throughout said material.