Thermally stable gun and caseless cartridge propellants

Details Thermally stable gun and caseless cartridge propellants Thermally stable gun and caseless cartridge propellants

1974-03-05

1981-04-21

Miller, Edward A.

Explosive and thermic compositions or charges

Structure or arrangement of component or product

Solid particles dispersed in solid solution or matrix

102 38CC, 102103, 149 92, C06B 4510

Patent

active

042630703

ABSTRACT:
The water and oil resistance of caseless gun propellant compositions of the type which comprise cyclotetramethylenetetramine (HMX) as the high energy component and polyurethane as the binder are improved by preparing the binder by reaction of isocyanates with a hydroxyl-terminated block copolymer of ethylene oxide and propylene oxide or mixture of the block copolymer with other hydroxyl-terminated polyalkylene oxides. The block copolymer preferably contains from 40% to 60% by weight of ethylene oxide units and comprises at least 15% by weight of the binder.

REFERENCES:
patent: 3529042 (1970-09-01), Lippert
patent: 3725154 (1973-04-01), McCulloch et al.
patent: 3730094 (1973-05-01), Quinlan
patent: 3762328 (1973-10-01), Rocha
patent: 3834957 (1974-09-01), McDevitt et al.
patent: 3847081 (1974-11-01), Quinlan et al.

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