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Polyester base fabric for airbag, polyester airbag, and method of manufacturing polyester base fabric for airbag
US2018086300A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2018086300-A1 |
| Application number | US-201615562009-A |
| Country | US |
| Kind code | A1 |
| Filing date | Mar 10, 2016 |
| Priority date | Mar 30, 2015 |
| Publication date | Mar 29, 2018 |
| Grant date | — |
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- Title
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Abstract
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A polyester base fabric for airbags woven from polyester fiber has an energy absorption amount in a warp direction (EW) when the polyester base fabric is elongated up to a stress of 118 N/cm and subsequently relaxed to a stress of 0 N/cm of 1.0 to 3.0 J/cm 2 ; an energy absorption amount in a weft direction (EF) when the polyester base fabric is elongated up to a stress of 118 N/cm and subsequently relaxed to a stress of 0 N/cm of 1.0 to 3.0 J/cm 2 ; and a ratio (EW/EF) of the energy absorption amount in the warp direction (EW) to the energy absorption amount in the weft direction (EF) of 0.5 to 2.0.
First claim
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1 .- 6 . (canceled) 7 . A polyester base fabric for airbags woven from polyester fiber, wherein: an energy absorption amount in a warp direction (EW) when the polyester base fabric is elongated up to a stress of 118 N/cm and subsequently relaxed to a stress of 0 N/cm is 1.0 to 3.0 J/cm 2 ; an energy absorption amount in a weft direction (EF) when the polyester base fabric is elongated up to a stress of 118 N/cm and subsequently relaxed to a stress of 0 N/cm is 1.0 to 3.0 J/cm 2 ; a ratio (EW/EF) of the energy absorption amount in the warp direction (EW) to the energy absorption amount in the weft direction (EF) is 0.5 to 2.0. 8 . The polyester base fabric for airbag of claim 7 , wherein a basis weight is not more than 250 g/m 2 . 9 . The polyester base fabric for airbag of claim 7 , having a cover factor of 2,000 to 2,600. 10 . The polyester base fabric for airbag of claim 7 , wherein: an elongation in the warp direction when the polyester base fabric is elongated up to a stress of 118 N/cm is 5 to 10%; and an elongation in the weft direction when the polyester base fabric is elongated up to a stress of 118 N/cm is 5 to 10%. 11 . A polyester airbag woven from the polyester base fabric of claim 7 . 12 . A method of manufacturing the polyester base fabric of claim 7 , comprising: using a loom having a positive easing mechanism to perfoiiii weaving so that a ratio (E/H) of an easing amount (E) to a shedding amount of a first frame (H) is 3 to 10%. 13 . The polyester base fabric for airbag of claim 8 , having a cover factor of 2,000 to 2,600. 14 . The polyester base fabric for airbag of claim 8 , wherein: an elongation in the warp direction when the polyester base fabric is elongated up to a stress of 118 N/cm is 5 to 10%; and an elongation in the weft direction when the polyester base fabric is elongated up to a stress of 118 N/cm is 5 to 10%. 15 . The polyester airbag of claim 11 , wherein a basis weight of the polyester base fabric is not more than 250 g/m 2 . 16 . The method of manufacturing the polyester base fabric for airbag of claim 12 , wherein a basis weight of the polyester base fabric is not more than 250 g/m 2 .
Assignees
Inventors
Classifications
- B60R21/235Primary
characterised by their material · CPC title
polyesters, e.g. polyethylene terephthalate [PET] · CPC title
Air bags · CPC title
- D03D1/02Primary
Inflatable articles · CPC title
Back rests; Lease rods; Brest beams · CPC title
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Frequently asked questions
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- What does patent US2018086300A1 cover?
- A polyester base fabric for airbags woven from polyester fiber has an energy absorption amount in a warp direction (EW) when the polyester base fabric is elongated up to a stress of 118 N/cm and subsequently relaxed to a stress of 0 N/cm of 1.0 to 3.0 J/cm 2 ; an energy absorption amount in a weft direction (EF) when the polyester base fabric is elongated up to a stress of 118 N/cm and subseque…
- Who is the assignee on this patent?
- Toray Industries
- What technology area does this patent fall under?
- Primary CPC classification B60R21/235. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Thu Mar 29 2018 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).