Air bag gas generating composition

• US 5,827,996 A
• Filed: 05/29/1997
• Issued: 10/27/1998
• Est. Priority Date: 09/29/1995
• Status: Expired due to Fees

• Current Assignee: Otsuka Kagaku Kabushiki Kaisha
• Original Assignee: Otsuka Kagaku Kabushiki Kaisya
• Inventors: Yoshida, Tadao, Onishi, Junichi, Shimizu, Yasuo, Hara, Kazuo, Chijiwa, Shiro
• Primary Examiner(s): Anthony, Joseph D.
• Application Number:
  US08/849,526
• Time in Patent Office: 516 Days
• Field of Search: 149/36, 149/37, 149/45, 149/46, 149/61, 149/75, 149/76, 149/77, 149/83, 149/88, 149/109.2
• US Class Current: 149/45
• CPC Class Codes: C06B 45/22 the coating containing an organic compound
• CPC Class Codes: C06D 5/06 by reaction of two or more solids

Abstract

A gas-generating composition for air bags, which provides low explosion risk and low toxicity, has at least one gas-generating base selected among urazol and metal salts thereof, as the active ingredient, and an oxidizing agent. Urazol and metal salts thereof can effectively generate gas at a low burning temperature when in combination with the oxidizing agent.

Claims

1. An air bag gas generating composition comprising, as active compounds, as least one gas generating base selected from the group consisting of urazole and a metal salt thereof, and an oxidizing agent selected from the group consisting of oxohalogen acid salts nitrites, metallic peroxides hyperoxides and ozone compounds.

3. An air bag gas generating composition according to claim 1 or 2 wherein said at least one gas generating base is a mixture of urazole and a metal salt thereof.

4. An air bag gas generating composition according to claim 1 or 2 wherein the oxidizing agent is an oxohalogen acid.

2. An air bag gas generating composition comprising, as active compounds, as least one gas generating base selected from the group consisting of urazole and a metal salt thereof, an oxidizing agent selected from the group consisting of oxohalogen acid salts, nitrites, metallic peroxides hyperoxides and ozone compounds, and at least one member selected from the group consisting of a burning catalyst, a burning control agent and a slagging agent.

5. An air bag gas generating composition comprising, as active compounds, a gas generating base consisting of urazole and a metal salt thereof, and an oxidizing agent.

6. An air bag gas generating composition according to claim 5, wherein said metal salt is selected from the group consisting of alkali metal salts, and alkali earth metal salts.

7. An air bag gas generating composition comprising, as active compounds, a gas generating base consisting of urazole and a metal salt thereof, an oxidizing agent, and at least one member selected from the group consisting of a burning catalyst, a burning control agent and a slagging agent.

8. An air bag gas generating composition according to claim 7, wherein said metal salt is selected from the group consisting of alkali metal salts, and alkali earth metal salts.