Patent ID: 8012890
Filing Date: 2011-09-06
Classification: B32B,Y10S,Y10T

Abstract:
1. A flame resistant fabric, said flame resistant fabric comprising: a fabric substrate, wherein said fabric substrate has cellulosic fibers and thermoplastic fibers, said cellulosic fibers being present in an amount between about 50% and about 70% of the weight of said fabric and said thermoplastic fibers being present in an amount between about 30% and about 50% of the weight of said fabric; and a finish applied to said fabric substrate, wherein said finish comprises a softening agent and a pentavalent phosphorous compound, the pentavalent phosphorous compound being a product produced by first heat-curing and then oxidizing a reaction mixture comprising (i) urea and (ii) a compound selected from the group consisting of tetrahydroxymethyl phosphonium salts and tetrahydroxymethyl phosphonium condensates, the tetrahydroxymethyl phosphonium condensate being produced by reacting a tetrahydroxymethyl phosphonium salt with a compound selected from the group consisting of urea, guanazole, and biguanide; wherein at least a portion of said cellulosic fibers have the pentavalent phosphorous compound polymerized therein.