Patent ID: 7148271

Claim:
A reinforced fibrous material comprising at least one fibrous substrate having first and second major surfaces, at least one major surface of said fibrous substrate treated with a water-borne composition to provide said fibrous material with increased strength under both ambient as well as wet or humid conditions, wherein said water-borne composition consists of a blend of: (a) a resin selected from the group consisting of synthetic hydrocarbon resins polymerized from monomers or oligomers of coal tar feed stocks, synthetic hydrocarbon resins polymerized from monomers or oligomers of petroleum feed stocks, and synthetic hydrocarbon resins polymerized from monomers or oligomers of turpentine feed stocks; natural resins from rosins, fossil resins, mined resins, and secretion products from insects; chemical derivatives and adducts of such natural resins; and mixtures of such synthetic hydrocarbon and natural resins; and (b) a wax.