Gas generating agent

• US 20060065338A1
• Filed: 08/30/2005
• Published: 03/30/2006
• Est. Priority Date: 09/27/2004
• Status: Active Grant

• Current Assignee: Daicel Chemical Industries Limited
• Original Assignee: Daicel Chemical Industries Limited
• Inventors: Tomiyama, Shogo, Wu, Jianzhou
• Granted Patent: US 7,811,397 B2
• Time in Patent Office: Days
• US Class Current: 149/45
• CPC Class Codes: B60R 21/36 using airbags
• CPC Class Codes: C06D 5/06 by reaction of two or more solids

Abstract

A highly heat-resistant gas generating agent is provided. The gas generating agent is for a gas generator for an airbag system that is installed at least outside a vehicle cabin and that protects an individual subjected to impact by the vehicle, and has a mass loss rate of not more than 1% after holding for 400 hours at 130° C. in a sealed system. The gas generating agent preferably comprises fuel and oxidizing agent and the melting point of the fuel is preferably at least 250° C.

Claims

1. A gas generating agent for a gas generator for an airbag system that is installed at least outside a vehicle cabin and that protects an individual subjected to impact by the vehicle, the gas generating agent having a mass loss rate of not more than 1% after holding for 400 hours at 130°

C. in a sealed system.

2. The gas generating agent according to claim 1, comprising fuel and oxidizing agent, wherein the melting point or decomposition point of the fuel is at least 250°

C.

3. The gas generating agent according to claim 2, wherein the oxidizing agent is at least one selected from the group consisting of basic copper nitrate, sodium nitrate, potassium nitrate, strontium nitrate, sodium perchlorate, potassium perchlorate, and strontium perchlorate.

4. The gas generating agent according to claim 1, accommodated in a gas generator of an airbag system that is installed at least outside a vehicle cabin.

5. The gas generating agent according to claim 2, accommodated in a gas generator of an airbag system that is installed at least outside a vehicle cabin.