Thermoplastic composite rocket propellant

Details Thermoplastic composite rocket propellant Thermoplastic composite rocket propellant

1981-06-12

1982-11-30

Lechert, Jr., Stephen J.

Plastic and nonmetallic article shaping or treating: processes

Explosive or propellant article shaping or treating

Rolling to form sheet or rod

264 3R, 264 3B, 149 199, 149 21, 149 42, 149 76, 1491096, 149113, C06B 2100

Patent

active

043615260

ABSTRACT:
A process is disclosed by which thermoplastic elastomers may be utilized to repare melt-formable composite rocket propellants. The thermoplastic elastomer is dissolved in a volatile organic solvent, the other propellant ingredients are mixed in, and the volatile organic solvent is evaporated. The dried propellant is melt-formed to final shape by molding or extruding above the melting point of the elastomer. An example of a usable thermoplastic elastomer is a block copolymer comprised of about 5 to about 20 weight percent styrene and of about 80 to 95 weight percent diene. The formed grain can be reclaimed by melting or dissolution in an organic solvent for reuse of the propellant ingredients.

REFERENCES:
patent: 3879504 (1975-04-01), Sherman et al.

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