Fabric for airbag
AssigneeHoechst Aktiengesellschaft
InventorsPeter Swoboda, Gerhard Hohnke, Wolfgang Goltner
Life of this patent
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Abstract
There is described an airbag fabric made of a synthetic yarn. The synthetic yarn is a high-tenacity polyester filament yarn having filaments of less than 4 dtex and a yarn count within the range from 250 to 550 dtex. The fabric itself, in contrast to the conventional polyamide fabrics, is uncoated and is preferably made by weaving unsized yarns. The fabric need not be calendered. It has been found that this fabric of fine-filament high-tenacity polyester yarn, although uncoated, does meet the airbag fabric requirements such as low air permeability, low fabric weight, low fabric thickness and high fabric strength.
Claims18
An uncoated synthetic yarn fabric for a gastight part of an airbag having a gastight part and a gas-releasing part, wherein the synthetic yarn is a high-tenacity polyester filament yarn with filaments of 4 dtex or less and the yarn count is within the range from 250 to 550 dtex, and the fabric is constructed with a rib stop weave.
An uncoated synthetic yarn fabric for a gas-releasing part of an airbag having a gastight part and a gas-releasing part, wherein the synthetic yarn is a high-tenacity polyester filament yarn with filaments of 4 dtex or less and the yarn count is within the range from 250 to 550 dtex, and the fabric is constructed with a cross twill weave.
Dependencies are inferred from the claim text.