Abstract: A composite panel comprising a first composite skin having a first fabric layer positioned between a first Kraft paper layer and a second Kraft paper layer; a second composite skin having a second fabric layer positioned between a third Kraft paper layer and a fourth Kraft paper layer; a foam core bonded to the first composite skin and to the second composite skin; and a binding composition applied to the first fabric layer and to the second fabric layer and penetrating the second Kraft paper layer and the third Kraft paper layer so that the first composite skin is bonded to a first surface of the foam core and the second composite skin is bonded to a second surface of the foam core.

Abstract: A composite panel comprising a first composite skin having a first fabric layer positioned between a first Kraft paper layer and a second Kraft paper layer; a second composite skin having a second fabric layer positioned between a third Kraft paper layer and a fourth Kraft paper layer; a foam core bonded to the first composite skin and to the second composite skin; and a binding composition applied to the first fabric layer and to the second fabric layer and penetrating the second Kraft paper layer and the third Kraft paper layer so that the first composite skin is bonded to a first surface of the foam core and the second composite skin is bonded to a second surface of the foam core.

Abstract: An impregnator for impregnating a fabric layer comprising: a chamber, the chamber being structured and arranged so as to retain a binding composition in a fluid state; a first opening being structured and arranged so as to allow the fabric layer entering the chamber in a dry state from a top portion of the chamber to be dived into the binding composition; and a second opening extending along the longitudinal axis of a bottom portion of the chamber, the second opening being structured and arranged to allow the fabric layer to exit from the bottom portion of the chamber in an impregnated state, the second opening comprising a first lip structured and arranged to be in contact with a first surface of the fabric layer and a second lip structured and arranged to be in contact with a second surface of the fabric layer.

Abstract: A method for manufacturing a composite material, the method comprising: positioning a first fabric layer between a first Kraft paper layer and a second Kraft paper layer; impregnating the first fabric layer with a binding composition while maintaining the first Kraft paper layer and the second Kraft paper layer dry; assembling the impregnated first fabric layer, the first Kraft paper layer and the second Kraft paper layer together to form a first pre-impregnated multilayer assembly; applying pressure on the first pre-impregnated multilayer assembly to diffuse the binding composition from the first fabric layer to the first Kraft paper layer and the second Kraft paper layer; and curing the first pre-impregnated multilayer assembly.

Abstract: A composite panel comprising a first composite skin having a first fabric layer positioned between a first Kraft paper layer and a second Kraft paper layer; a second composite skin having a second fabric layer positioned between a third Kraft paper layer and a fourth Kraft paper layer; a foam core bonded to the first composite skin and to the second composite skin; and a binding composition applied to the first fabric layer and to the second fabric layer and penetrating the second Kraft paper layer and the third Kraft paper layer so that the first composite skin is bonded to a first surface of the foam core and the second composite skin is bonded to a second surface of the foam core, the binding composition being a bio resin.

Abstract: An impregnator for impregnating a fabric layer comprising: a chamber, the chamber being structured and arranged so as to retain a binding composition in a fluid state; a first opening being structured and arranged so as to allow the fabric layer entering the chamber in a dry state from a top portion of the chamber to be dived into the binding composition; and a second opening extending along the longitudinal axis of a bottom portion of the chamber, the second opening being structured and arranged to allow the fabric layer to exit from the bottom portion of the chamber in an impregnated state, the second opening comprising a first lip structured and arranged to be in contact with a first surface of the fabric layer and a second lip structured and arranged to be in contact with a second surface of the fabric layer.

Abstract: A method for manufacturing a composite material, the method comprising: positioning a first fabric layer between a first Kraft paper layer and a second Kraft paper layer; impregnating the first fabric layer with a binding composition while maintaining the first Kraft paper layer and the second Kraft paper layer dry; assembling the impregnated first fabric layer, the first Kraft paper layer and the second Kraft paper layer together to form a first pre-impregnated multilayer assembly; applying pressure on the first pre-impregnated multilayer assembly to diffuse the binding composition from the first fabric layer to the first Kraft paper layer and the second Kraft paper layer; and curing the first pre-impregnated multilayer assembly.

Abstract: A composite panel comprising a first composite skin having a first fabric layer positioned between a first Kraft paper layer and a second Kraft paper layer; a second composite skin having a second fabric layer positioned between a third Kraft paper layer and a fourth Kraft paper layer; a foam core bonded to the first composite skin and to the second composite skin; and a binding composition applied to the first fabric layer and to the second fabric layer and penetrating the second Kraft paper layer and the third Kraft paper layer so that the first composite skin is bonded to a first surface of the foam core and the second composite skin is bonded to a second surface of the foam core, the binding composition being a bio resin.

Abstract: The present invention concerns improvements in the use of polyester materials in arc quenching applications, particularly in the cutout fuse tube industry. In one embodiment of the present invention a fuse tube is disclosed as comprising a laminate two-layered structure including as its inner layer, (or liner), a heat-treated polyester filament winding supported in a cured cyclo-aliphatic epoxy resin matrix. The outer layer includes wound glass filaments supported within a cured epoxy resin matrix. The heat treatment of the polyester filament substantially improves the mechanical and electrical character of the fuse tube.