High-energy explosive or propellant composition
AssigneeHer Majesty the Queen in right of Canada, as represented by the Minister of National Defence
InventorsGuy Perrault, Roger Lavertu, Jean-Francois Drolet
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Abstract
Pour-castable composites are disclosed having mechanical properties such that they are useful either as a high-energy explosives or as propellants. The novel composites include (a) either RDX or HMX as a solid highly-energetic ingredient; (b) a hydroxy-terminated polybutadiene based binder; (c) a diisocyanate curing agent, and (d) a compound of the structural formula ##STR1## wherein R is CH.sub.3, CH.sub.3 (CH.sub.2).sub.x or C.sub.x H.sub.(2x+1), and where x is an integer from 1 to 6, alone or mixed with N,N-di-(2-hydroxyethyl)-4,4-dimethylhydantoin as chemically compatible surfactants.
Claims24
A pour-castable composite for use as a high-energy explosive or propellant consisting essentially of:
- a. a solid highly-energetic ingredient selected from cyclotrimethylenetrinitramine and cyclotetramethylenetetranitramine,
- b. a hydroxy-terminated polybutadiene based binder,
- c. a diisocyanate curing agent, and
- d. a chemically compatible surfactant selected from the group consisting of:
- (1) compounds of the formula:
- ##STR5## where R is C.sub.x H.sub.(2x+1), and where each x is independently an integer from 1 to 6;
- and mixtures of (1) and N,N-di-(2-hydroxyethyl)-4,4-dimethylhydantoin.
A composite according to claim 3, including
- e. a plasticizer for the hydroxy-terminated polybutadiene based binder.
A pour-castable composite for use as a high-energy explosive or propellant, comprising:
- __________________________________________________________________________ %/w __________________________________________________________________________ a. a solid highly-energetic ingredient selected from the group consisting of cyclotrimethylenetrinitramrine and cyclotetramethylenetetranitramine [RDX and HMX], 39-89 b. a hydroxy-terminated polybutadiene based binder selected from the group consisting of a compound of the formula:
- ##STR8## wherein n has a value of from 44 to 60, and a compound of the formula:
- ##STR9## wherein n has a value of 57-65, provided that in both formulae the polybutadiene structure is 60% trans-1,4, 20% cis-1,4 and 20% vinly-1,2 [Poly BD.RTM. R45M and Poly BD.RTM. R45HT], 5-12 c. a diisocyanate curing agent, 0.5-1.5 d. a chemically compatible surfactant selected from the group consisting of 4-hydroxy-N,N-dimethylbutyramide and a mixture of N,N-di-(2-hydroxyethyl)-4, 4-dimethylhydantoin, and 4-hydroxy-N, N-dimethylbutyramde, 0.05-0.50 e. a plasticizer for (b.), 0-8 f. a phospholipid processing agent selected from lecithin and asolectin 0-0.15 g. a catalyst 0-0.05 h. NH.sub.4 C1O.sub.4 0-50 i. Al 0-30 __________________________________________________________________________
A pour-castable composite for use as a high energy explosive or propellant consisting, in percent by weight of:
- __________________________________________________________________________ [%/w] __________________________________________________________________________ a. Cyclotetramethylenetetranitramine [HMX] 85% b. and c. hydroxy-terminated polybutadiene based binder selected from the group consisting of a compound of the formula:
- ##STR10## wherein n has a value of from 44 to 60 and a compound of the formula:
- ##STR11## wherein n has a value of 57-65, provided that in both formulae the polybutadiene structure is 60% trans -1,4, 20% cis-1,4 and 20% vinyl -1,2 [Poly BD.RTM. R45M and Poly BD.RTM. R45HT], and tolyl diisocyanate curing agent, wherein the NCO/OH ratio is about 1.1 9.45% d. 4-hydroxy-N, N-dimethylbutyramide 0.15% e. di-(ethylhexyl)-azelate 5.25% f. asolectin 0.15% Total 100.00% __________________________________________________________________________
A pour-castable for use as a high energy explosive or propellant consisting, in percent by weight, of:
- __________________________________________________________________________ [%/w] __________________________________________________________________________ a. Cyclotetramethylenetetranitramine [HMX] 85% b. and c. hydroxy-terminated polybutadiene based binder selected from the group consisting of a compound of the formula:
- ##STR12## wherein n has a value of from 44 to 60 and a compound of the formula:
- ##STR13## wherein n has a value of 57-65, provided that in both formulae the polybutadiene structure is 60% trans -1,4, 20% cis-1,4 and 20% vinly -1,2 [ Poly BD.RTM. R45M and diisocyanate curing agent, wherein the NCO/OH ratio is about 1.1 9.45% d. 4-hydroxy-N, N-dimethylbutyramide 0.08% d.sup.1. N, N,-di-(2-hydroxyethyl)-4, 4-dimethylhydantoin 0.07% e. di-(ehtylhexyl)-azelate 5.25% f. asolectin 0.15% Total 100.00% __________________________________________________________________________
Dependencies are inferred from the claim text.