Abstract: A composite synthetic leather sheet material and method of manufacture thereof is disclosed. The composite sheet material comprises outer thermoplastic polymeric layers bonded to opposite faces of a reinforcing textile fabric, preferably a porous woven fabric of high strength material, by an intermediate polymeric layer which fills the interstices of the fabric and has opposite surfaces disposed adjacent the fabric surfaces to engage and firmly secure the outer thermoplastic polymeric layers in the composite sheet. One of the outer thermoplastic layers is foamed to a relatively high degree and the outer surface of the foam is mechanically abraded or buffed to provide a suede-like leather appearance thereto. The other outer thermoplastic layer may be foamed and provided with an embossed leather-like surface appearance. The sheet material product is reversible in use, completely heat-sealable, flow-moldable, and printable on both sides for subsequent manufacture of synthetic leather good articles.

Abstract: A solution of elastomeric polyurethane in a volatile solvent is centrifugally sprayed onto a base in a strong electrostatic field to form long fibers that are swept across the base and deposited thereon in generally straight condition, overlapping and adhered to previously deposited fibers. Novel fibrous sheets of high strength are thus produced. The intersecting fibers may be ribbon-like.