adhesive polyurethane prime coat comprises a solution of an aliphatic or aromatic polyester polyurethane or polyether polyurethane based material or a polycarbonate based aliphatic polyurethane that is compounded with other materials such as weight stabilizers heat stabilizers flame retardants colorants and blocked isocyanate the presence of isocyanate is important because when sufficient heat and pressure is applied to the prime coat composition the isocyanate becomes adhesively activated at that point in the process the polyurethane reacts with and adhesively binds the overlying polymeric film layer the result is a thermoset film prime coat composite which adheres to the textile fabric seals it and makes it air tight and able to withstand high pressures for the relatively long periods of time required of an air curtain the seams of such a structure exhibit increased strength and are better able to withstand the extreme pressures of inflation when activated another prime coat adhesive composition comprising a solution of polycarbonate polyurethane a hot melt polyurethane and an isocyanate results in greatly improved bonding heat resistance and heat aging properties in the film laminated textile fabrics of the invention the polycarbonate polyurethane provides bonding strength to the adhesive so that the film laminate will firmly and securely.