Polycaprolactone-deterred nitrocellulose propellant compositions

Details Polycaprolactone-deterred nitrocellulose propellant compositions Polycaprolactone-deterred nitrocellulose propellant compositions

1989-09-05

1990-08-21

Lechert, Jr., Stephen J.

Explosive and thermic compositions or charges

Particle size of a component

Organic fuel

149 11, 1491096, 102290, 264 34, C06B 4528

Patent

active

049503421

ABSTRACT:
Method for producing novel deterred granular nitrocellulose propellant powder compositions having a stable burn rate gradient. The invention comprises coating nitrocellulose propellant granules with a minor amount by weight of a polycaprolactone polymer which is soluble in nitrocellulose under conditions which cause the polymer to be gradually dissolved into the granules to produce maximum burn deterrence at the surface of the granules which gradually decreases inwardly therefrom to produce a desired burn rate gradient in the granules.

REFERENCES:
patent: 4350542 (1982-09-01), Kincaid et al.
patent: 4389263 (1983-06-01), Allen
patent: 4638735 (1987-01-01), Lelu et al.
patent: 4654093 (1987-03-01), Bolinder et al.

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