Composite propellant with surface having improved strain capacit

Details Composite propellant with surface having improved strain capacit Composite propellant with surface having improved strain capacit

1968-12-04

1980-12-30

Miller, Edward A.

Ammunition and explosives

Igniting devices and systems

102 99, 149 196, 149 199, 149 1991, F42B 100, C06B 4510

Patent

active

042416612

ABSTRACT:
The invention is based on the discovery that when at least a part of the initial burning surface of an epoxy cured carboxy terminated rubber type composite propellant is coated with a propellant antioxidant material, an increase in resistance to oxidative hardening and an increase in strain capability is imparted to said surface. The invention provides (1) such a composite propellant coated at an initial burning surface with a propellant antioxidant in an amount sufficient to impart those unexpected improvements, (2) method involving coating the burning surface with the requisite amount of the propellant antioxidant material, and (3) a propellant rocket motor containing the above said propellant. When only a portion of the surface is subject to high strain, e.g. in slot areas, it is sufficient that only that portion of the burning surface be coated.

REFERENCES:
patent: 3147161 (1964-09-01), Abere et al.
patent: 3177190 (1965-04-01), Hsieh
patent: 3305523 (1967-02-01), Burnside
patent: 3417059 (1968-12-01), Hoffman

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