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Патент USA US2411604

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Patented Nov. 26, 1946
2,411,604
UNITED STATES PATENT OFICE
2,411,604
STABILIZED CYCLONITE
Milton Heins Wahl, Woodbury, N. J ., assignor to
E. I. du Pont de N emours & Company, Wilming
ton, Del., a corporation of Delaware
No Drawing. Application August 18, 1942,
Serial No. 455,215
(01. 52—5)
1 Claim.
1
2
The present invention relates to detonating ex
While the foregoing bases are all applicable
under the invention, I ?nd that diphenylamine
and the diethyl dialkyl ureas are particularly
plosive compositions adapted to military and/or
commercial use.
advantageous.
Certain existing explosive compositions of this
type exhibit a marked tendency to undergo auto
The compositions of my inventions may be pre
. catalytic decomposition.
pared in any convenient manner.
I ?nd the
An object of the present invention is a new
invention particularly advantageous in the case
and improved explosive composition of this type.
of cast mixtures, wherein the composition is ex
Another object is such a composition character
posed to elevated temperatures during prepara
ized by freedom from autocatalytic decomposi 10 tion. The invention is applicable also however
tion. Other objects will be apparent from the
in the case of simple mechanical mixtures,
detailed description of my invention in the fol
pressed or unpressed, or mixtures obtained by co
lowing.
precipitation from solvents.
I have found that the foregoing objects are ac
The amount of the base used is preferably
complished by employing a. composition compris 15 within the range of 0.1% to 4.0%, based on the
ing cyclotrimethylenetrinitramine and an or
weight of the explosive composition. A smaller
ganic base having a dissociation constant lower
amount than 0.1% is insuf?cient to effect the
than 1>< 10—5.
freedom from autocatalytic decomposition if the
The foregoing explosive may be employed as
resulting composition, while the use of more than
well in mixtures or blends with certain fusible 20 4.0% would lower the strength of the resulting
nitrated organic compounds such as pentaerythri
explosive compound, and tend to desensitize the
tol tetranitrate tetryl, ethylene dinitramine, eth
ylene dinitramine tetranitrate, nitromannite and
trinitrotoluene.
composition.
In manufacturing cast explosives according to
the invention, the base preferably will be added
The following will serve as illustrations of or 25
when the explosive composition is in a molten con
ganic bases that come within the scope of the
dition.
invention. I ?nd it preferable to use an amount
Those engaged in the manufacture and/or use
of the organic base within the range of 0.1% to
of military detonating explosives, and commercial
4.0% of the explosive content:
Dissocia
Base
‘on
Constant
Urea
1. 5X10‘14
Alpha-naphthylamine _______________________________ ..
Beta-napbthylamine
-
2. XlO-lo
Pyridine
Phenylenerliamine
9. 9X10-11
3. 3X10”
.
3. 3X10-10
o-Toluidine __________________________________ ._
3. 3X10-1°
Diphenylamine __________ -_
Sym-diphenyl-dimethyl ure .
Sym-diphenyl-diethyl urea- _ .
1.
l.
1.
_
XlO'"
Xl0-14
X10‘M
Thioutea_ _ _ _
1. 1X10'"
Acetanilii __
4. 1X10‘“
Dicyandiamid _______________________________________ __
1.
-
30 explosives as well, will appreciate that the art
has been advanced in the development of the
compositions of the present invention which are
characterized by freedom from autocatalytic de
composition to an extent not hitherto possible.
35 I intendto be bound only by the ‘following pat
ent claim.
I claim:
An explosive composition comprising cyclotri
methylenetrinitramine and between 0.1% and
40 4.0% of an organic base having a dissociation con
stant lower than 1 x 10—5_
Xlo-H
MILTON H. WAHL.
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