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US 5,516,378 AGranted
Explosive composition and its use in making ammunition
AssigneeOlin Corporation
InventorsGuy H. Henry, III, Frank M. Bone, Matthew S. Solverson
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Abstract
An explosive charge is disclosed for use as ammunition in a casing. The charge is comprised of a particulate propellant which is embedded in a solidified matrix prepared from an energetic liquid composition. The latter comprises a liquid, energetic plasticizer, a polyol and an organic polyisocyanate.
Claims29
An explosive charge, for use as ammunition in a casing, comprising:
- a particulate propellant embedded in a solidified energetic matrix which is prepared from a liquid formulation comprised of
- (a) from about 60 to about 92 percent by weight of a liquid energetic plasticizer,
- (b) from about 4 to about 25 percent by weight of a polyol having two or more terminal hydroxyl groups, and
- (c) an organic polyisocyanate having two or more isocyanato groups, in a proportion which is sufficient to provide at least about 0.7 isocyanato group per each hydroxyl group of said polyol.
1 more element
An energetic liquid composition, consisting essentially of:
- (a) from about 60 to about 92 percent by weight of a liquid energetic plasticizer;
- (b) from about 4 to about 25 percent by weight of a polyol having two or more terminal hydroxyl groups;
- and
- (c) an organic polyisocyanate having two or more isocyanato groups, in a proportion which is sufficient to provide at least about 0.7 isocyanato group per each hydroxyl group of said polyol.
1 more element
The energetic liquid composition of claim wherein said polyol is a nitramine-containing polymer represented by the formula
- [(OOCCH.sub.2 CH.sub.2 --R--CH.sub.2 CH.sub.2 CO).sub.x (OOCCH.sub.2 CH.sub.2 --R'--CH.sub.2 CH.sub.2 CO).sub.y (OR")].sub.n
- ps wherein
- R and R' are the same or different moieties selected from the group consisting of --N(NO.sub.2)--N(NO.sub.2)CH.sub.2 CH.sub.2 N(NO.sub.2)--, and --N(NO.sub.2)ZN(NO.sub.2)--, wherein Z is a linear or branched-chain hydrocarbon radical having 3 to 10 carbon atoms, with the proviso that on average at least one of R and R' per molecule of the polymer is a moiety other than --N(NO.sub.2)CH.sub.2 CH.sub.2 N(NO.sub.2);
- x represents a mole fraction having a value between 0 and 1;
- y represents a mole fraction equal to 1-x;
- R" is a linear or branched-chain alkylene or alkylene ether radical having 2 to 12 carbon atoms and having primary or secondary carbon atoms at the radical' points of attachment in the polymer;
- and n has a value from 2 to 50.
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Dependencies are inferred from the claim text.