Azide-free gas-producing composition

US6132537A · 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: Apr 7, 1999
• Grant date: Oct 17, 2000
• Expiry date: Apr 7, 2019

Classification

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

Abstract

The present invention provides a composition, in particular for use in safety devices for motor vehicles, which comprises a fuel mixture consisting of at least two components in a proportion of from 20 to 60% by weight and an oxidizer mixture consisting of at least three components in a proportion of from 40 to 80% by weight, relative to the total composition in each case. The composition is wherein the fuel mixture is composed of 5 to 95% by weight of a guanidine compound, 5 to 95% by weight of a heterocyclic organic acid, and 0 to 20% by weight of further fuels, relative to the fuel mixture in each case. According to the invention the oxidizer mixture is composed of 20 to 70% by weight of one or more transition-metal oxides, 10 to 50% by weight of basic copper nitrate, and 2 to 30% by weight of metal chlorate, metal perchlorate, ammonium perchlorate, alkali nitrate, alkaline-earth nitrate or mixtures thereof, relative to the oxidizer mixture in each case.