Patent ID: 6508894
Filing Date: 2003-01-21
Classification: C06B,C08G

Abstract:
A propellant composition comprising an energetic copolyurethane thermoplastic elastomer, said thermoplastic elastomer including a hard segment generated by formation of hydrogen bonds between a first urethane group of one linear copoloymer chain with a second urethane group of another linear copolymer chain, wherein said second urethane group are selected from the group consisting of and the energetic thermoplastic elastomer further comprises a soft segment generated by a macromonomer derived from a prepolymer selected from the group consisting of glycidyl azide polymer, poly-3-azidomethyl-3-methyloxetane, poly-3-nitratomethyl-3-methyloxetane, and poly-glycidyl nitrateand said composition further comprises from between 70 and 85 weight percent of explosive nitramine crystals.