Patent ID: 7857920

Claim:
A propellant composition, comprising: about 5 weight % to about 30 weight % of a polymeric binder component containing about 4 weight % to about 10 weight % of poly-functional hydroxy terminated copolymer of caprolactone and tetrahydrofuran; about 0.1 weight % to about 2 weight % of at least one isocyanate curative reactive with alcohol groups on said poly-functional hydroxy terminated copolymer of caprolactone and tetrahydrofuran to form urethane linkages; about 1 weight % to about 21 weight % of triethylene glycol dinitrate plasticizer; about 0.01 weight % to about 1.0 weight % of at least one additive containing cure catalyst and stabilizer; about 1 weight % to about 40 weight % of at least one solid gas generators; and about 1 weight % to about 50 weight % of at least one oxidizer having a particle size of about 1 to about 15 micrometers and said composition is free of perchlorate.