Heat Resistant Coating for Use in Airbags and Methods of Their Manufacture
First Claim
1. A heat shield, comprising:
- a base substrate;
a heat resistant coating on the base substrate, wherein the heat resistant coating comprises particles of an inorganic mineral dispersed within a film-forming binder; and
a first point-bonded sheet laminated to the heat resistant coating such that the first point-bonded sheet forms an outer surface of the heat shield with the heat resistant coating positioned between the first point-bonded sheet and the base substrate.
1 Assignment
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Accused Products
Abstract
A heat shield is generally provided, along with methods of making the heat shield and its use in a vehicle safety device (e.g., an airbag). In one embodiment, the heat shield includes a base substrate (e.g., a nonwoven fabric, a woven fabric, or a film); a heat resistant coating on the base substrate; and a first point-bonded sheet laminated to the heat resistant coating such that the first point-bonded sheet forms an outer surface of the heat shield with the heat resistant coating positioned between the first point-bonded sheet and the base substrate. The heat resistant coating generally comprises particles of an inorganic mineral (e.g., vermiculite, mica, or a combination thereof) dispersed within a film-forming binder (e.g., an acrylic resin, a styrene-butadiene rubber, a polyvinyl alcohol, an ethyl vinyl acetate resin, a phenolic resin, or a combination thereof).
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Citations
20 Claims
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1. A heat shield, comprising:
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a base substrate; a heat resistant coating on the base substrate, wherein the heat resistant coating comprises particles of an inorganic mineral dispersed within a film-forming binder; and a first point-bonded sheet laminated to the heat resistant coating such that the first point-bonded sheet forms an outer surface of the heat shield with the heat resistant coating positioned between the first point-bonded sheet and the base substrate. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A method of forming a heat shield, the method comprising:
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wet-laying a coating composition onto a base substrate, wherein the coating composition comprises particles of an inorganic mineral, a film-forming binder, and a solvent; drying the coating composition to remove the solvent and form a heat resistant coating on the base substrate; and laminating a first point-bonded sheet onto the heat resistant coating.
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Specification