Patent US4948438A successfully refreshed from Google Patents.
US4948438A
Expired / Lapsed
US
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Intermolecular complex explosives
Assignee: United States Department of the Air Force
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Filing: 1989-11-13
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Granted: 1990-08-14
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Expires: 2009-11-13
Abstract
Abstract 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.
Inventors
- 👤 Michael A. Patrick
- 👤 Stephen A. Aubert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:59
CPC Classifications
C; C06; C06B; C06B31/00; C06B31/28; C06B31/32; C06B31/34; C06B31/36
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
29 words
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.
Claim 2
Dependent Claim
29 words
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.
Claim 3
Dependent Claim
21 words
The explosive composition of claim 1 containing about 0.1 to about 25 wt. % of at least one melting point depressant.
Claim 4
Dependent Claim
35 words
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.
Claim 5
Dependent Claim
22 words
The explosive composition of claim 1 containing up to about 80 wt. % of at least one other fuel-rich or oxidizer-rich component.
Claim 6
Dependent Claim
26 words
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.
Claim 7
Dependent Claim
29 words
The explosive composition of claim 1 containing about 0.1 to 80 wt. % of at least one melting point depressant and at least one other fuel-rich or oxidizer-rich component.
Claim 8
Dependent Claim
56 words
The explosive composition of claim 6 wherein said melting point depressant is selected from the group consiting of nitroguanidine, guanidine nitrate, aminoguanidine nitrate, urea, potassium nitrate, sodium nitrate, lithium nitrate, calcium nitrate and ammonium perchlorate, and wherein said other component is selected from the group consisting of nitroguanidine, RDX, HMX, PETN, ammonium perchlorate and aluminum powder.
Claim 9
Dependent Claim
23 words
The explosive composition of claim 7 containing 39. 2 parts ammonium nitrate, 45 parts methylnitroguanidine, 11.3 parts nitroguanidine and 4.5 parts sodium nitrate.
Claim 10
Dependent Claim
19 words
The explosive composition of claim 8 containing 40 parts of the composition of claim 8 and 60 parts nitroguanidine.
Claim 11
Dependent Claim
23 words
The explosive composition of claim 8 containing 30 parts of the composition of claim 8, 20 parts aluminum powder and 50 parts nitroguanidine.
Claim 12
Dependent Claim
26 words
The explosive composition of claim 7 containing 36.9 parts ammonium nitrate, 42.4 parts methylnitroguanidine, 10.5 parts nitroguanidine, 5.9 parts potassium nitrate and 4.3 parts sodium nitrate.
Claim 13
Dependent Claim
22 words
The explosive composition of claim 7 containing 36.0 parts ammonium nitrate, 43.5 parts methylnitroguanidine, 10.5 parts nitroguanidine and 4.3 parts ammonium perchlorate.
Claim 14
Dependent Claim
19 words
The explosive composition of claim 7 containing 45.0 parts ammonium nitrate, 31.3 parts methylnitroguanidine and 23.7 parts guanidinium nitrate.
References Cited (Backward Citations)
US4421578A
Cited
US4507161A
Cited
US4600452A
Cited
US4552597A
Cited
US4632714A
Cited
US4701227A
Cited
US4747892A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-08-13 | 1994-02-12 | 1994-08-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-08-13 | 1998-02-12 | 1998-08-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-08-13 | 2002-02-12 | 2002-08-14 | $7700.00 | Window Closed / Lapsed |