Coating fabric for airbags and method for manufacturing the same
AssigneeToyobo Co., Ltd.
InventorsTsutomu Akechi, Mamoru Kitamura
Life of this patent
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Abstract
The present invention provides a coating fabric for airbags where an elastomer is coated to at least one side of textile constituted from synthetic fiber filament, which is characterized in that the coating weight of the resin is as small as 10 to 20 g/m2 and an average resin thickness of the head top in the textile surface is 4.0 μm to 12.0 μm in both directions of warp and weft and that the average value of burning speed measured according to FMVSS 302 is not more than 60 mm/min in both directions of warp and weft and the maximum value thereof is not more than 1.2-fold to the average value in both directions of warp and weft.
Claims11
A coating fabric for airbags where a hardened elastomer is coated to at least one side of textile constituted from synthetic fiber filament, wherein
- the hardened elastomer is a solvent-free methyl vinyl silicone rubber of an addition type and is prepared from a coating composition that contains a solvent-free methyl vinyl silicone and has a viscosity of 25,000 to 50,000 mPa·sec, in which the methyl vinyl silicone is the only polymer in the coating composition;
- the coating weight is 10 g/m2 to 20 g/m2;
- an average coating thickness of the top area in the textile surface is 4.0 μm to 12.0 μm in both directions of warp and weft;
- the fabric has a tension of 300 N/m to 700 N/m in the coating direction measured during coating;
- and
- the average value of burning speed measured according to FMVSS 302 is not more than 60 mm/min in both directions of warp and weft, the maximum value of burning speed in the warp direction is not more than 1.15-fold to the average value of burning speed in the warp direction, the maximum value of burning speed in the weft direction is not more than 1.15-fold to the average value of burning speed in the weft direction, and the average and maximum values of burning speed in the warp and weft directions are obtained from a plurality of fabric samples.
Dependencies are inferred from the claim text.