Igniting agent composition and ignitor using same

A technology of igniting agent and composition, which is applied in the direction of inorganic oxyhalogen salt explosive composition, ignition device, belt tightener, etc., and can solve problems such as delayed expansion or development, mis-ignition, and decreased ignition ability

Inactive Publication Date: 2004-09-15
NIPPON KAYAKU CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, when the igniter used in the igniter, such as a fuse tip, is made of an igniter composition that does not contain lead, when a predetermined current is applied, there is a certain delay between when the fuse tip is ignited and a predetermined time. delay, which causes a decrease in the ignition ability to ensure that the transfer load is ignited, and in severe cases can lead to misfiring
For this reason, when this type of igniter is used in gas generators for automotive airbag devices and seat belt pretensioners, there is a possibility that expansion or development will be delayed

Method used

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  • Igniting agent composition and ignitor using same
  • Igniting agent composition and ignitor using same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0062] 40 parts by mass of basic copper nitrate, 60 parts by mass of zirconium and 5 parts by mass of nitrocellulose were dissolved in 100 parts by mass of isoamyl acetate and mixed. This mixture was applied to the surface of an arc-shaped wire, on which it was dried and cured to form a layer of igniter, and this surface was coated with a vinyl acetate-based resin (manufactured by Eastman Chemical Co., Ltd.) to form a coating, so that A fuse tip was made and a plug was fitted into the cup containing the transfer load to form the igniter.

Embodiment 2

[0064] 50 parts by mass of basic copper nitrate, 50 parts by mass of zirconium and 5 parts by mass of nitrocellulose were dissolved in 100 parts by mass of isoamyl acetate and mixed. This mixture was applied to the surface of an arc-shaped wire, on which it was dried and cured to form a layer of igniter, and this surface was coated with a vinyl acetate-based resin (manufactured by Eastman Chemical Co., Ltd.) to form a coating, so that A fuse tip was made and a plug was fitted into the cup containing the transfer load to form the igniter.

Embodiment 3

[0066] 50 parts by mass of basic copper nitrate, 50 parts by mass of zirconium and 5 parts by mass of polyvinyl acetate were dissolved in 100 parts by mass of isoamyl acetate and mixed. This mixture was applied to the surface of an arc-shaped wire on which it dried and cured to form an igniter layer, and the surface was coated with a vinyl acetate-based resin (manufactured by Eastman Chemical Co., Ltd.) to form a coating, thus producing Got the fuse tip and plugged it into the cup containing the transfer load to form the igniter.

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Abstract

An igniting agent composition substantially free of a lead compound, characterized in that it comprises a metal power and one or more selected from the group consisting of nitrate salt, basic nitrate salt, a metal oxide and a basic carbonate salt; and an igniter using the igniting agent composition. The igniting agent composition shows no delay in ignition time and no reduction in igniting capability, as compared to conventional lead-containing composition.

Description

technical field [0001] The present invention relates to an igniter composition for an igniter etc. and an igniter using the igniter composition, and more particularly to an igniter preferably used for a gas generator used for a vehicle air bag device and A seat belt pretensioner, and an igniter composition for an igniter. Background of the invention [0002] Generally, when referring to igniters attached to gas generators used in vehicle restraint retaining devices, such as vehicle air bag devices and seat belt pretensioners, those of the current-carrying type are used. This type of igniter converts electrical energy into thermal energy through an arc-shaped wire, so the fuse tip formed by the igniter composition and placed near the arc-shaped wire is ignited, thereby transferring the load (transfer charge) ) and the gas generating agent are combusted by the resulting fire. Highly flammable igniters containing lead compounds, such as lead trinitroresorcinol, are used for s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60R21/26B60R21/264C06B33/00C06C9/00
CPCC06C9/00B60R21/26C06B33/00C06B33/04
Inventor 松村也寸志前田繁佐藤英史池田健治朗
Owner NIPPON KAYAKU CO LTD
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