Particle-free, gas-producing mixture

US5989367A · kind A · utility

Assignee

• TRW Airbag Systems GmbH & Co. KG · DE

Inventors

• Siegfried Zeuner · Hersbruck, DE
• Achim Hofmann · Polling, DE
• Roland Schropp · Tegernheim, DE
• Karl-Heinz Rodig · Waldkraiburg, DE

Key dates

• Filing date: Sep 24, 1998
• Grant date: Nov 23, 1999
• Expiry date: Sep 24, 2018

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C06D5/06
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

The invention relates to a particle-free, gas-producing mixture for use in a gas generator for a safety device, in particular for a vehicle-occupant restraint system, with a total water content of the gas-producing mixture of at most 0.3%, consisting of: PA1 a) an energy-rich fuel with an oxygen value of not less than -35%; PA1 b) an oxidant mixture of ammonium nitrate and ammonium perchlorate, wherein the ammonium nitrate is contained in a proportion of 35 to 50 wt. %, and the ammonium perchlorate in a proportion of 3 to 10 wt. %, in each case relative to the total weight of the mixture; PA1 c) optionally, relative to the total weight of the mixture, a phase-stabilizing additive for the ammonium nitrate in a proportion of at most 5 wt. % relative to the weight of the ammonium nitrate; PA1 d) 0 to 3 wt. % combustion moderators relative to the total weight of the mixture, and PA1 e) 0 to 5 wt. % processing aids relative to the total weight of the mixture.