Patent ID: 6990886

Claim:
A finished reinforced multi layer fabric ( 18 ) consisting essentially of: at least a first layer ( 12 ) of threads ( 13 ) parallel with each other, superimposed on at least one second layer ( 12 ) of threads also parallel with each other, the threads of said first layer ( 12 ) being set in various directions as regards the threads of the second layer; a binding layer ( 14 ) interposed between said first and second layer ( 12 ) to keep said layers together and to prevent one layer sliding over the other, wherein said binding layer comprises a film made of a material selected from thermoplastic resin, thermosetting resin, felt, or powder, and wherein said threads being made up of fibrils ( 16 ) which are impregnated with a resin matrix ( 17 ) which prevents said fibrils of a single thread from sliding over each other without friction and wherein the binding layer ( 14 ), interposed between the first and second layers ( 12 ), has an elastic modulus at least 10% bigger than the elastic modulus of said resin matrix ( 17 ).