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EP0591119A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Propellant for airbags

Assignee: Eurenco Bofors AB
•
Filing: 1993-09-21
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Granted: —
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Expires: 2013-09-21
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Abstract

Abstract The present invention relates to a novel gas-emitting substance for that type of extreme gasgenerator which is employed for inflating so-called airbags in motor vehicles, comprising one or more high-energy explosives such as hexogen (RDX) or octogen (HMX) as a major component.

Inventors

  • 👤 Jörgen Sandström
  • 👤 Anders Hafstrand
  • 👤 Per Sjöberg

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-10-26 22:25
CPC Classifications
C; C06; C06D; C06D5/00; C06D5/06; C06B; C06B25/00; C06B25/34

Claims Analysis

Total Claims: 5
Claim 1
Independent Claim 76 words
A gas-emitting substance for inflating an accident safety arrangement of the so-called airbag type, comprising one or more high-energy explosives as major gas-emitting substance, characterized in that, the substance includes between 50 and 95 per cent of hexogen (RDX) and/or octogen (HMX) of a mean particle size of between 1 and 20 µm, up to 5 weight per cent of nitrocellulose and between 5 and 50 weight per cent of a combustible, energetic or non-energetic binder.
Claim 2
Dependent Claim 56 words
The gas-emitting substance as claimed in Claim 1, characterized in that use is made, as energetic binder, of one or more of the substances selected from a group comprising polyurethanes (PU), cellulose acetate butyrate (CAD), hydroxy terminated polybutadiene (HTPB), ethyl cellulose (EC), glycidylacid polymers (GAP), and polymers of either 3-nitratemethyl-3-methyl oxymethane (polynimmo) or glydicyl nitrate (Polyglyn).
Claim 3
Dependent Claim 49 words
The gas-emitting substance as claimed in any one of Claims 1 or 2, characterized in that it consists of 76 weight per cent RDX 12 weight per cent CAB 7.6 weight per cent TBC 4 weight per cent Nitrocellulose 0.4 weight per cent ethyl centralite including normal calculated impurities.
Claim 4
Dependent Claim 24 words
The gas-emitting substance as claimed in Claim 3, characterized in that it has been designed as a powder of a thickness of 0.15-1.0 mm.
Claim 5
Dependent Claim 37 words
The gas-emitting substance as claimed in any one or more of Claims 1-4, characterized in that it also includes an oxidation agent in the form of an oxygen-emitting substance such as potassium nitrate (KNO₃) or the like.

References Cited (Backward Citations)

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