Process and apparatus for producing single- or multi-base propel

Details Process and apparatus for producing single- or multi-base propel Process and apparatus for producing single- or multi-base propel

1983-11-03

1985-06-25

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

149 96, 149 97, 1491096, 4251311, C06B 2100

Patent

active

045253137

ABSTRACT:
Single- or multi-base propellants are produced in a solvent process from ir starting components, of which at least one is moistened with alcohol, using a twin-shaft screw extruder, that has an inlet zone run at a raised temperature, then nextly a mixing and kneading zone and lastly an outlet zone. The temperature in the kneading and mixing zone and in the outlet zones is kept at a value that is higher than in the inlet zone. Furthermore there is a temperature drop towards the outlet zone.

REFERENCES:
patent: 3897733 (1975-08-01), Stiefel et al.
patent: 3904719 (1975-09-01), Fritsch
patent: 3968955 (1976-07-01), Fritsch
patent: 4354884 (1982-10-01), Williams
patent: 4444606 (1984-04-01), Bertrand et al.

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