Fabric for air bag and air bag
US-2018281737-A1 · Oct 4, 2018 · US
Airbag base cloth and airbag including same
US11358562B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11358562-B2 |
| Application number | US-201816650335-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 27, 2018 |
| Priority date | Sep 29, 2017 |
| Publication date | Jun 14, 2022 |
| Grant date | Jun 14, 2022 |
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- Title
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Abstract
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Provided is an airbag base fabric that has a low air permeability sufficient to ensure the safety of occupants and heat resistance sufficient to withstand high-power, high-temperature gas generated from a recent downsized inflator, and that is capable of being packaged compactly. Also provided is an airbag comprising the base fabric. An airbag base fabric comprising a synthetic fiber multifilament having a total fineness of 500 to 750 dtex, the airbag base fabric having an areal weight of 225 to 245 g/m2, air permeability at 20 kPa of 0.2 to 0.8 L/cm2/min, and edgecomb resistance according to the ASTM D 6479 method of 300 to 600 N in both warp and weft directions.
First claim
Opening claim text (preview).
The invention claimed is: 1. An airbag base fabric comprising a synthetic fiber multifilament having a total fineness of 500 to 750 dtex, the airbag base fabric having an areal weight of 225 to 245 g/m 2 , air permeability at 20 kPa of 0.2 to 0.8 L/cm 2 /min, and edgecomb resistance according to the ASTM D 6479-15 method of 300 to 600 N in both warp and weft directions. 2. The airbag base fabric according to claim 1 , wherein the airbag base fabric has a weave density of 35 to 55 yarns/2.54 cm in both warp and weft directions. 3. The airbag base fabric according to claim 1 , wherein the synthetic fiber is at least one synthetic fiber selected from the group consisting of polyamide fibers and polyethylene terephthalate fibers. 4. The airbag base fabric according to claim 1 , wherein a single yarn of the synthetic fiber has a cross-sectional shape having an aspect ratio of 1.4 or less. 5. An airbag comprising the airbag base fabric of claim 1 . 6. The airbag according to claim 5 , which is a non-coated airbag. 7. The airbag base fabric according to claim 1 , wherein the synthetic fiber multifilament has a total fineness of 530 to 700 dtex. 8. The airbag base fabric according to claim 1 , wherein the airbag base fabric has an areal weight of 230 to 240 g/m 2 . 9. The airbag base fabric according to claim 1 , wherein the airbag base fabric has an areal weight of 232 to 235 g/m 2 . 10. The airbag base fabric according to claim 1 , wherein the airbag base fabric has an air permeability at 20 kPa of 0.3 to 0.7 L/cm 2 /min. 11. The airbag base fabric according to claim 1 , wherein the airbag base fabric has edgecomb resistance according to the ASTM D 6479-15 method of 300 to 550 N in both warp and weft directions. 12. The airbag base fabric according to claim 1 , wherein the airbag base fabric has a weave density of 40 to 50 yarns/2.54 cm in both warp and weft directions.
Assignees
Inventors
Classifications
Air bags · CPC title
characterised by the properties of the yarns or threads · CPC title
with specific cross-section or surface shape · CPC title
- D03D15/283Primary
synthetic polymer-based, e.g. polyamide or polyester fibres (cellulose-based artificial fibres D03D15/225) · CPC title
- D03D13/008Primary
characterised by weave density or surface weight · CPC title
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Frequently asked questions
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- What does patent US11358562B2 cover?
- Provided is an airbag base fabric that has a low air permeability sufficient to ensure the safety of occupants and heat resistance sufficient to withstand high-power, high-temperature gas generated from a recent downsized inflator, and that is capable of being packaged compactly. Also provided is an airbag comprising the base fabric. An airbag base fabric comprising a synthetic fiber multifilam…
- Who is the assignee on this patent?
- Toyo Boseki
- What technology area does this patent fall under?
- Primary CPC classification D03D15/283. Mapped technology areas include Textiles & Paper.
- When was this patent published?
- Publication date Tue Jun 14 2022 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).