Polyethylene binder for pyrotechnic composition

• US 4,203,786 A
• Filed: 06/08/1978
• Issued: 05/20/1980
• Est. Priority Date: 06/08/1978
• Status: Expired due to Term

• Current Assignee: Allied Chemical Corporation (Honeywell International Inc.)
• Original Assignee: Allied Chemical Corporation (Honeywell International Inc.)
• Inventors: Garner, Eugene F.
• Primary Examiner(s): Miller, Edward A.
• Application Number:
  US05/913,915
• Time in Patent Office: 712 Days
• Field of Search: 149/19.91, 149/82, 149/83
• US Class Current: 149/19.91
• CPC Class Codes: C06B 45/10 the organic component containing a resin
• CPC Class Codes: C06D 5/06 by reaction of two or more solids

Abstract

Use of high density polyethylene as a fuel/binder in pyrotechnic compositions suitable for use in inflating vehicle occupant safety restraints.

Claims

1. A pyrotechnic composition for the generation of a non-toxic, non-flammable and essentially smokeless inflating gas for an inflatable occupant safety restraint, said composition comprising, in approximate weight percent based on the total weight of the composition,

(a) 1 to 10% of a high density homopolymer of ethylene, having a density of about 0.92 to 0.97 at 23°

C. as determined by ASTM Method D 792;

3. The composition of claim 1 wherein the inorganic oxidizer is sodium chlorate.

5. The composition of claim 3 wherein about 0.5 to 1.5 wt.% carbon black is present.

6. The compositon of claim 3 wherein the ethylene homopolymer--and the period following "present" has been changed to--in an amount of from about 3 to 5 wt.% is present.

2. (b) 20 to 30% of a coolant selected from the group consisting of calcium hydroxide, magnesium hydroxide, calcium carbonate and magnesium carbonate, and

(c) 60 to 79% of an inorganic oxidizer selected from the group consisting of sodium chlorate, potassium chlorate, sodium perchlorate and potassium perchlorate.

4. The composition of claim 2 wherein the coolant is calcium hydroxide.