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Pyrotechnic gas generator compounds

A composite, pyrotechnic technology, applied in the direction of smoke/mist generation, compressed gas generation, non-explosive/non-thermal agent components, etc., can solve the problems of reducing the gas output value of the composition, disadvantage, low level, etc.

Active Publication Date: 2014-01-15
世迈派乐特(苏州)科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0012] 7) Finally, and more importantly, there is a limit to the amount of solid particles produced by the combustion of complexes, which must be kept low
[0022] Finally, according to the teaching of said patent US6143102 and said patent applications EP1342705 and EP1568673, the first additive (as a shock catalyst) and the second additive (ensuring the coagulation of copper residues) can account for up to 10 wt%, or even 15 wt% of the composite composition %, which would detrimentally reduce the gas production value of the composition

Method used

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  • Pyrotechnic gas generator compounds
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Embodiment Construction

[0071] It is now proposed to illustrate the invention in a completely non-limiting manner.

[0072] A. Table 1 below shows three examples of the composition of the complexes of the present invention (Example 1, Example 2 and Example 3), and the complex and the prior art compound described in US6143102 (cf. Ratio 1) Properties in comparison (the composites according to the invention and the composites according to the prior art are both manufactured by dry process).

[0073] The composites are evaluated using thermodynamic calculations or based on physical measurements of granules or pellets obtained from the composition by "blending powder-compacting-granulating-and optionally dry pelletizing" Manufactured by craftsmanship.

[0074] As a reference, prior art compound 1 (Ref. Example 1) contained guanidine nitrate, basic copper nitrate and alumina (Al 2 o 3 ) and silica (SiO 2 ).

[0075] In addition to the two components of reference compound 1, guanidine nitrate and basi...

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Abstract

The main subject of the present invention is solid pyrotechnic gas generator compounds, the composition of which contains: guanidine nitrate, basic copper nitrate, and at least one inorganic titanate, the melting point of which is above 2100 K. Said compounds are perfectly suitable for use in frontal airbags.

Description

technical field [0001] The present invention relates to a gas-generating pyrotechnic compound (or a pyrotechnic product), which has a moderate burning temperature (below 2200K) and a high burning rate (greater than or equal to 20mm / s at 20MPa), said Gas-producing pyrotechnic compounds produce combustion residues in agglomerated form, which can thus be easily filtered. [0002] The gas-generating pyrotechnic compound is particularly suitable for use in protective systems for motor vehicle occupants, more particularly for inflating frontal airbags (see below). Background technique [0003] During the past two decades, the field of technology related to the protection of motor vehicle occupants has undergone considerable development. The latest generation of motor vehicles now incorporate several safety systems of the airbag type in the passenger compartment, whose operation is ensured by the combustion gases of pyrotechnic compounds. In the airbag type system, it is divided ...

Claims

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Application Information

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IPC IPC(8): C06B23/00C06D5/06
CPCC06D3/00C06B23/007C06D5/06C06B23/00C06B31/00C06B33/14C06B45/00
Inventor 弗雷德里克·马林斯特凡·伯松布
Owner 世迈派乐特(苏州)科技有限公司