Ignition enhanced gas generant and method

• US 6,096,147 A
• Filed: 07/30/1998
• Issued: 08/01/2000
• Est. Priority Date: 07/30/1998
• Status: Expired due to Fees

• Current Assignee: Autoliv ASP Incorporated (Autoliv Incorporated), Northrop Grumman Innovation Systems, Inc. (Northrop Grumman Corporation)
• Original Assignee: Autoliv ASP Incorporated (Autoliv Incorporated), Cordant Technologies, Inc. (Howmet Aerospace, Inc.)
• Inventors: Lund, Gary K., Taylor, Robert D., Mendenhall, Ivan V.
• Primary Examiner(s): Jordan, Charles T.
• Assistant Examiner(s): FELTON, AILEEN BAKER
• Application Number:
  US09/126,467
• Time in Patent Office: 733 Days
• Field of Search: 149/109.6, 149/5, 149/6, 149/7, 149/3, 427/201, 427/202, 427/180
• US Class Current: 149/3
• CPC Class Codes: C06B 45/18 comprising a coated component particles dispersed in a matrix C06B45/04; coated explosive charges F42B
• CPC Class Codes: C06C 9/00 Chemical contact igniters; Chemical lighters
• CPC Class Codes: C06D 5/06 by reaction of two or more solids

Abstract

An ignition enhanced gas generant grain and method of making an ignition enhanced gas generant involving the application of a dry blend igniter composition to a gas generant particle having a wet adhesive surface.

Claims

1. A method of making an ignition enhanced gas generant, said method comprising:

applying a dry blend igniter composition to a gas generant particle to form an ignition enhanced gas generant grain, wherein the gas generant particle has a wet adhesive surface.

2. The method of claim 1 additionally comprising the step of:

solvent extruding a gas generant material to form the gas generant particle, the particle having a solvent wet adhesive surface to which the dry blend igniter composition is applied.

3. The method of claim 1 wherein the gas generant particle includes a solvent soluble binder, which binder forms the wet adhesive surface.

4. The method of claim 1 additionally comprising the step of:

forming the gas generant particle having a wet adhesive surface in a preselected shape prior to said step of applying the dry blend igniter composition.

5. The method of claim 1 wherein said applying step comprises the step of coating the wet adhesive surface of the gas generant particle with the dry blend igniter composition.

6. The method of claim 5 wherein said coating step comprises tumbling a plurality of the wet gas generant particles with a quantity of dry blend igniter composition powder.

7. The method of claim 5 wherein said coating step comprises spray coating a wet gas generant particle with a quantity of dry blend igniter composition powder.

8. The method of claim 5 wherein said coating step comprises contacting a wet gas generant particle with a quantity of dry blend igniter composition powder during fluid bed drying of the particle.