Fumaric acid-based gas generating compositions for airbags
First Claim
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1. A gas-generating mixture for producing propellant gas for protection devices wherein the mixture consists essentially of:
- a) 20 to 45% by weight of fumaric acid; and
b) 55 to 80% by weight of an inorganic oxidant selected from the group consisting of perchlorates, chlorates, peroxides and mixtures of these.
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Abstract
The subject invention concerns a propellant mixture for producing propellant gas for passenger protection systems in motor vehicles, in particular airbag systems. According to this invention, this propellant mixture comprises fumaric acid, with a share of 20 to 45% by weight, as well as an inorganic oxidant with a share of 55 to 80% by weight. These revealed propellant components are non-toxic and characterized by a high thermal stability as well as low hygroscopicity. In addition, this propellant contains only minor traces of pollutant gases, with even combustion residues being non-toxic.
17 Citations
4 Claims
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1. A gas-generating mixture for producing propellant gas for protection devices wherein the mixture consists essentially of:
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a) 20 to 45% by weight of fumaric acid; and b) 55 to 80% by weight of an inorganic oxidant selected from the group consisting of perchlorates, chlorates, peroxides and mixtures of these. - View Dependent Claims (2, 3, 4)
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Specification
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Current AssigneeTEMIC Bayern-Chemie Airbag GmbH
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Original AssigneeTEMIC Bayern-Chemie Airbag GmbH
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InventorsRodig, Karl-Heinz, Stark, Armin, Zeuner, Siegfried
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Primary Examiner(s)Walsh, Donald P.
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Assistant Examiner(s)HARDEE, JOHN R
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Application NumberUS08/452,292Time in Patent Office382 DaysField of Search149/7, 149/83, 149/19, 149/19.7, 149/85, 149/77US Class Current149/85CPC Class CodesC06D 5/06 by reaction of two or more ...
