Coated azide gas generating composition

• US 4,390,380 A
• Filed: 04/21/1982
• Issued: 06/28/1983
• Est. Priority Date: 03/31/1980
• Status: Expired due to Fees

• Current Assignee: Albert T. Camp
• Original Assignee: Albert T. Camp
• Inventors: Camp, Albert T.
• Primary Examiner(s): Miller, Edward A.
• Application Number:
  US06/370,586
• Time in Patent Office: 433 Days
• Field of Search: 149/7, 149/8, 149/19.91, 149/35
• US Class Current: 149/8
• CPC Class Codes: C06B 45/34 the compound being an organic explosive or an organic thermic component
• CPC Class Codes: C06D 5/04 by auto-decomposition of single substances

Abstract

An improved gas generating composition for generating nitrogen gas made by coating pellets of a pyrotechnic alkali metal azide composition with an energetic lacquer coating.

Claims

1. A gas generating composition for use in inflating automobile crash bags comprising a mixture, in pellet form, of an alkali metal azide and an oxidant, each pellet coated with a lacquer comprising pentaerythritol trinitrate acrylate polymer.

2. The gas generating composition of claim 1 wherein said alkali metal azide is selected from the group consisting of sodium azide, potassium azide and lithium azide or mixtures thereof and wherein said oxidant is selected from the group consisting of potassium perchlorate, strontium nitrate, ammonium perchlorate, chromic chloride, ferric chloride, cobaltic chloride, cupric oxide, ferric oxide, molybdic oxide, or mixtures thereof.

3. The gas generating composition of claim 1 wherein said alkali metal azide is sodium azide and said oxidant is potassium perchlorate.

4. The gas generating composition of claim 1 wherein the alkali metal azide comprises about 50 to 90%, the oxidant comprises about 8 to 48%, and the dried lacquer about 2 to 42% by weight of the composition.

5. The gas generating composition of claim 1 wherein said lacquer is water and acid resistant.