Textile substrate with a continuous coating of a mixture of polyester polyurethane and polycarbonate polyurethane

An airbag comprising:

• a textile substrate having an inner side and an outer side and,
• a continuous coating on at least one side of the textile substrate, wherein the continuous coating comprises a physical mixture of polyester polyurethane and polycarbonate polyurethane, wherein the physical mixture was made by the process of:
• a. forming an aqueous polycarbonate polyurethane dispersion, wherein the polycarbonate polyurethane dispersion comprises a plurality of polycarbonate polyurethane particles and aqueous solution, wherein the polycarbonate polyurethane particles have an average particle size of less than about 1 micron;
• b. forming an aqueous polyester polyurethane dispersion, wherein the polyester polyurethane dispersion comprises a plurality of polyester polyurethane particles and aqueous solution, wherein the polyester polyurethane particles have an average particle size less than 5 microns;
• and,
• c. mixing the polycarbonate polyurethane dispersion and the polyester polyurethane dispersion together forming a physical mixture, wherein the physical mixture contains between about 5 and 35% by weight polycarbonate polyurethane dispersion and between about 65 and 95% by weight polyester polyurethane dispersion.

An airbag module comprising:

• (a) an airbag, the airbag enclosing an interior volume and comprising:
• a textile substrate having an inner side and an outer side;
• and, a continuous coating on at least the one side of the textile substrate, wherein the continuous coating comprises a physical mixture of polyester polyurethane and polycarbonate polyurethane, wherein the physical mixture was made by the process of:
• 1. forming an aqueous polycarbonate polyurethane dispersion, wherein the polycarbonate polyurethane dispersion comprises a plurality of polycarbonate polyurethane particles and aqueous solution, wherein the polycarbonate polyurethane particles have an average particle size of less than about 1 micron;
• 2. forming an aqueous polyester polyurethane dispersion, wherein the polyester polyurethane dispersion comprises a plurality of polyester polyurethane particles and aqueous solution, wherein the polyester polyurethane particles have an average particle size less than 5 microns;
• and,
• 3. mixing the polycarbonate polyurethane dispersion and the polyester polyurethane dispersion together forming a physical mixture, wherein the physical mixture contains between about 5 and 35% by weight polycarbonate polyurethane dispersion and between about 65 and 95% by weight polyester polyurethane dispersion;
• (b) a gas generator, the gas generator being connected to the said airbag;
• and,
• (c) a cover at least partially enclosing the airbag and the gas generator.