Inhibitor for gun propellants

• US 4,263,069 A
• Filed: 11/05/1979
• Issued: 04/21/1981
• Est. Priority Date: 11/05/1979
• Status: Expired due to Term

• Current Assignee: the united states of america as represented by the secretary of the navy
• Original Assignee: the united states of america as represented by the secretary of the navy
• Inventors: Moore, Kenneth L., Reed, Russell Jr.
• Primary Examiner(s): Miller, Edward A.
• Application Number:
  US06/091,286
• Time in Patent Office: 533 Days
• Field of Search: 149/9, 149/11, 149/10, 149/19.2
• US Class Current: 149/11
• CPC Class Codes: C06B 21/0083 Treatment of solid structures, e.g. for coating or impregnating with a modifier compositions therefor C06B23/00
• CPC Class Codes: C06B 45/22 the coating containing an organic compound

Abstract

Gun propellant is coated with an oligomer having the structure: ##STR1## wherein R is --CH₂ CH₂ CH₂ Si(OCH₃)₃ ; wherein ns an integer of from 5 to 50 and wherein m is an integer of from 1 to 5. The purpose of the coating is to decrease the peak pressure produced but make the pressure that is produced last longer.

Claims

1. A method for improving the efficiency of and lowering the peak pressure produced by a high force, high flame temperature gun propellant comprising the steps of:

A. coating the propellant with an oligomer having the formula;

##STR5## wherein R is --CH₂ CH₂ CH₂ Si(OCH₃)₃, wherein n is an integer having a value of from 5 to 50 and wherein m is an integer having a value of from 1 to 5; and

B. allowing the oligomer to form a polymer.

2. A method according to claim 1 wherein the coating of the oligomer is applied in the form of a neat liquid.

3. A method according to claim 1 wherein the coating of the oligomer is applied in the form of a solution.

4. A method according to claim 3 wherein said solution consists essentially of the oligomer dissolved in a solvent selected from the group consisting of methanol and ethanol.