Coated fabric structure for air bag applications
AssigneeReeves Brothers, Inc.
InventorsJill R. Menzel, John R. Damewood, Bert A. Ross, Richard C. Kerr
Life of this patent
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Abstract
A fabric substrate which is at least partially or selectively coated with a novel polycarbonate-polyether polyurethane for use as a driver's side or passenger side air bag. The polyurethane coating is applied in a manner which provides a desired permeability to the fabric, allows the fabric to be cut without fraying the fibers of the substrate, and imparts flexibility toughness and tear resistance to the final product.
Claims20
A coated, fabric comprising a fabric substrate and a coating at least partially covering said substrate, said coating comprising a polyurethane formed from a polyol mixture of a polycarbonate polyol and a polyether polyol, a diisocyanate compound and first and second extender components, wherein the diisocyanate compound is initially reacted with the first extender component in a molar ratio of above 2:1 to form a modified diisocyanate component having a functionality of about 2 prior to reaction with the polyol mixture and the second extender component.
A coated fabric comprising a fabric substrate having a weight of between about 2 and 8 ounces per square yard and a coating at least partially covering said substrate, said coating comprising a linear polyurethane formed from a polyol mixture of a polycarbonate polyol and a polyether polyol, a diisocyanate compound, and first and second extender components, wherein the first extender component has a molecular weight of 500 or less and the diisocyanate compound is initially reacted with the first extender component in a molar ratio of above 2:1 to form a modified diisocyanate component having a functionality of about 2 prior to sequential reaction with the polyol mixture and the second extender component.
A coated fabric comprising a fabric substrate having a weight of between about 2 and 8 ounces per square yard and a coating substantially covering said substrate, said coating comprising a linear polyurethane formed from a polyol mixture of a polycarbonate polyol and a polyether polyol, a diisocyanate compound, and first and second extender components, wherein the first extender component has a molecular weight of 500 or less and the diisocyanate compound is initially reacted with the first extender component in a molar ratio of above 2:1 to form a modified diisocyanate component having a functionality of about 2 prior to sequential reaction with the polyol mixture and the second extender component.
Dependencies are inferred from the claim text.