Air bag fabric containing graft polymer thereon
First Claim
1. A method for making an air bag which comprises:
- forming a fabric structure of filaments or yarns in a predetermined configuration representative of an air bag; and
grafting a first component onto the filaments or yarns to provide increased resistance to fraying, and filament or yarn pull-out or distortion, during manufacture or use of the air bag compared to non-grafted filaments or yarns,wherein either the grafting or the forming step is performed first.
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Accused Products
Abstract
A method for making an air bag by forming a fabric structure of filaments or yarns in the configuration of an air bag, and grafting first and/or second components onto some or all of the filaments or yarns to provide the fabric structure with increased resistance to fraying, filament or yarn pull-out, or distortion during manufacture or use of the air bag compared to non-grafted filaments or yarns. The graft component(s) may be applied to the filaments or yarns prior to, during or after formation of the fabric structure. An air bag material suitable for use in a passive restraint system is also disclosed utilizing grafted fabric substrate provided by the above described method. A passive restraint system utilizing such fabrics is also described.
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Citations
55 Claims
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1. A method for making an air bag which comprises:
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forming a fabric structure of filaments or yarns in a predetermined configuration representative of an air bag; and grafting a first component onto the filaments or yarns to provide increased resistance to fraying, and filament or yarn pull-out or distortion, during manufacture or use of the air bag compared to non-grafted filaments or yarns, wherein either the grafting or the forming step is performed first. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 31, 55)
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27. A method for making an air bag which comprises:
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forming a fabric structure of filaments or yarns in a configuration representative of an air bag; formulating a solution of a graft initiator for activating sites on the filaments or yarns, a catalyst for activating the graft initiator, and a first component that has a functional group for reaction with an activated site on the filaments or yarns, and water; and grafting the first component onto the filaments or yarns to provide increased resistance to distortion, fraying and filament or yarn pull-out during manufacture or use of the fabric or air bag compared to non-grafted filaments or yarns, wherein either the grafting or the forming step is performed first. - View Dependent Claims (28, 29, 30, 32, 33, 34, 35)
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- 36. An air bag comprising a fabric structure formed of a plurality of filaments or yarns to at least some of which a first component has been grafted in order to provide a range of gas germeability and pliability properties which are increased compared to coated fabric substrates, or a degree of filament or yarn integrity which allows the fabric substrate to be mechanically pattern cut with improved resistance to fraying, filament or yarn pull-out or distortion compared to fabric substrates made of non-grafted filaments or yarns.
Specification