Flame retardant fabrics containing phosphorus-modified polyester fibres, airbags therefrom and their use

摘要

Uncoated fabric with a gas permeability less than 80 dm3 air / minute / dm2 at 500 Pa pressure drop (DIN 53 887) and comprising at least two systems of parallel high strength polyester filament yarns with a titre of 150 - 700 dtex, each individual filament having a titre less than 7 dtex. The polyester comprises a phosphorous-modified copolyester containing 0.1 - 5 (0.2 - 0.8) wt.% bifunctional phosphorous compound (with respect to the amount of phosphorous) incorporated into the polymer chain. Airbags containing these fabrics are also claimed.