Substrate with stretch and heat sealing properties to make a multidirectional restraint module design
First Claim
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1. A coated textile substrate for an air-holding vehicle restraint system, which comprises:
- a) a textile substrate of a stretchable knit fabric having opposed surfaces;
b) a first coating layer of an adhesive polyurethane on a surface of said textile substrate; and
c) a second coating layer of an elastomeric polyurethane on said first coating layer.
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Abstract
The invention is directed to coating a plurality of polyurethane films onto a stretchable knit fabric substrate and heat sealing such substrates together to yield an air curtain or air bag having improved air-holding properties.
89 Citations
40 Claims
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1. A coated textile substrate for an air-holding vehicle restraint system, which comprises:
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a) a textile substrate of a stretchable knit fabric having opposed surfaces;
b) a first coating layer of an adhesive polyurethane on a surface of said textile substrate; and
c) a second coating layer of an elastomeric polyurethane on said first coating layer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. An air-holding vehicle restraint system, comprising:
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a pair of heat-sealed polyurethane coated knitted textile substrates;
the outer surface of each substrate having an adhesive polyurethane film and an overlying elastomeric polyurethane film. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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26. An air-holding vehicle restraint system, comprising:
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a polyurethane coated knitted textile substrate heat-sealed to a polyurethane coated woven textile substrate;
the outer surface of each substrate having an adhesive polyurethane film and an overlying elastomeric polyurethane film. - View Dependent Claims (27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40)
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Specification