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Patent Number: |
4948438 |
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Case ID: |
0 |
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Patent Title:
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Intermolecular complex explosives
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Status: |
INACTIVE |
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Status Date: |
7/7/2008 10:47:19 AM |
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Issue Date:
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8/14/1990 |
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Filed Date:
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11/13/1989 |
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Serial #:
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435636 |
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Assignee Name:
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The United States of America as represented by the Secretary of the Air (Washington, DC)
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Inventor(s):
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Patrick, Michael A. ,
Aubert, Stephen A. |
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BACKGROUND OF THE INVENTION
This invention relates to explosives, particularly to explosive
compositions based upon ammonium nitrate.
Traditional general-purpose explosives comprise trinitrotoluene (TNT),
which has several disadvantages. It is a Class-A explosive, requiring
special mixing and handling procedures and storage facilities, all
accordingly increasing the cost of use. The preparation of this explosive
is through nitrate substitution of toluene by a mixed acid consisting of
concentrated nitric acid and sulphuric acid. The cost of concentrated
nitric acid is moderately expensive and any excess nitric acid in the
product destabilizes the explosive and presents corrosion problems.
Trinitrotoluene is not water soluble and bomb disposal cannot be done
economically by steam or hot water.
It is known to produce cast high explosive compositions by solidification
of a molten mixture of ammonium nitrate (AN) . . . . More |
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A melt/cast explosive composition comprising about 20 to 100 wt. % of a
binary complex of ammonium nitrate (AN) and methyl nitroguanidine (MeNQ)
in a molar ratio of about 0.55:1 to 1.35:1. This binary complex may be
used alone or it may be formulated with up to about 80 wt. % compatible
fuels and/or oxidizers to tailor the formulation for specific military or
commercial applications.
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We claim:
1. A melt/cast explosive composition comprising about 20 to 100 wt. % of a
binary complex of ammonium nitrate and methylnitroguanidine in a molar
ratio of about 0.55:1 to 1.35:1.
2. The explosive composition of claim 1 containing about 0.1 to about 25
wt. % of at least one melting point depressant.
3. The explosive composition of claim 2 wherein said melting point
depressant is selected from the group consisting of nitroguanidine,
guanidine nitrate, aminoguanidine nitrate, urea, potassium nitrate, sodium
nitrate, lithium nitrate, calcium nitrate and ammonium perchlorate.
4. The explosive composition of claim 1 containing up to about 80 wt. % of
at least one other fuel-rich or oxidizer-rich component.
5. The explosive composition of claim 4 wherein said other component is
selected from the group consisting of nitroguanidine, RDX, HMX, PETN,
ammonium perchlorate and aluminum powder.
6. . . . . More |
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