BINDER SYSTEM FOR CROSSLINKED DOUBLE BASE PROPELLANT
Assignee
ALLIANT TECHSYSTEMS INC.; COMPOSITE OPTICS, INC.; FEDERAL CARTRIDGE CO.; ORBITAL ATK, INC. (F/K/A ALLIANT TECHSYSTEMS INC.)
Filed
Mar 5, 1979
Granted
Nov 21, 1995
Location
San Diego CA (SAIC/General Dynamics)
Abstract
An improved crosslinked double base propellant composition is provided which has an improved binder system. The binder system is based on nitrocellulose (NC) having an intrinsic viscosity of from about 0.4 dl./gram to about 1.5 dl./gram and a polyester polyol or polyether polyol (polyol), in which the weight ratio of NC/polyol is from about 0.03/1 to about 0.8/1. The binder crosslinking agents are diisocyanates, and the ratio of NCO groups of the diisocyanates to combined OH groups of nitrocellulose and polyol is from about 0.7/1 to 1.2/1. Energetic plasticizer such as nitroglycerin comprises from about 68% to about 82% by weight of the binder. The binder contains a stabilizer and is capable of high solids loading, i.e., 70% to 77% solids.
Source: Google Patents
35 USC §181 Secrecy Order
Imposed
Apr 1, 1983
Rescinded
Sep 7, 1994
Duration
11 years, 5 months
Inventor
- 1JAMES H. GODSEY
Sensitive facility: San Diego CA (SAIC/General Dynamics)
Record Details
- Patent number
- US 5468311
- Application
- 06022123
- Aerospace match
- No
- Dataset source
- 35 USC §181 SO records