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US 2021/0129786 A1Published application
Airbags and methods for production of airbags
AssigneeInvista North America S.A.R.L.
InventorsJohn BARNES, Neil HUNT, Varunesh SHARMA, Martin TOWNSON, Anne GAUTHIER
Life of this patent
Estimating the term…
Abstract
Methods for production of automobile airbags with decreased air leakage and an increased duration of their inflated state, as well as airbags produced in accordance with these methods are provided.
Claims31
A method for decreasing air leakage from a one piece woven (OPW) airbag, said method comprising:
- forming an OPW airbag having seams;
- and
- applying a hot melt sealant material to one or more seams of the OPW airbag.
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An OPW airbag comprising:
- a one piece woven fabric, wherein a major portion of the fabric has multiple woven layers, a minor portion of the fabric having fewer woven layers than the major portion, and a seam between edges of major portions, and major and minor portions;
- and
- the seam is coated with a hot melt sealant material.
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A method for decreasing air leakage from an OPW airbag, said method comprising:
- a. calendering the OPW airbag;
- and
- b. laminating a film to the OPW airbag.
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Dependencies are inferred from the claim text.