Multilayer film dry lamination of airbag fabrics
AssigneeMilliken & Company
InventorsRamesh Keshavaraj, Dany F. Michiels
Life of this patent
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Abstract
An inflatable automotive protective cushion and method of formation. The protective cushion includes a multilayer film coating with an adhesive layer and an overlying barrier layer. The adhesive layer is adapted to bond to a textile substrate and the barrier layer is adapted to block air permeability.
Claims25
A method of manufacturing an inflatable automotive protective cushion, the method comprising the step of:
- melt bonding a multi-component film to a woven or non-woven textile substrate, wherein said multi-component film comprises at least one thermoplastic adhesive polymeric layer and a barrier layer, wherein said adhesive polymeric layer is in contacting relation to said textile substrate and wherein said barrier layer is the outermost layer of said multi-component film and wherein said adhesive polymeric layer has a melting point at least 30° C. lower than the melting point of said barrier layer.
A method of manufacturing an inflatable automotive protective cushion comprising the step of:
- melt bonding a multi-component film to a woven or non-woven textile substrate wherein said multi-component film comprises at least one thermoplastic adhesive polymeric layer and a barrier layer, wherein said adhesive polymeric layer is in contacting relation to said textile substrate, said adhesive polymeric layer comprising a co-polyamide resin and wherein said barrier layer is the outermost layer of said multi-component film, said barrier layer comprising a polyurethane resin and wherein said adhesive polymeric layer has a melting point at least 30° C. lower than the melting point of said barrier layer.
An inflatable automotive protective cushion comprising a woven or non-woven textile substrate having at least a first multi-component film melt bonded to at least a first side of the textile substrate, wherein said multi-component film comprises:
- (a) at least one thermoplastic adhesive polymeric layer wherein said adhesive polymeric layer is in contacting relation to said textile substrate;
- and
- (b) a barrier layer wherein said barrier layer is the outermost layer of said multi-component film;
- and wherein said adhesive polymeric layer has a melting point at least 30° C. lower than the melting point of said barrier layer.
Dependencies are inferred from the claim text.