Patent US5145535A successfully refreshed from Google Patents.
US5145535A
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Method for intermolecular explosive with viscosity modifier
Assignee: United States Department of the Air Force
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Filing: 1991-02-25
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Granted: 1992-09-08
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Expires: 2011-02-25
Abstract
Abstract A method for improving the disperion of particulate materials in intermollar explosive compositions which comprises dry blending at least one fuel compound and at least one oxidizer compound, a viscosity modifier and a dispersable particulate material, melt blending the resulting dry blend, and thereafter casting the melt into a suitable form, casing or mold. The viscosity modifier suitable for use in the invention is a cationic salt of carboxymethylcellulose ether. The viscosity modifier is added in an amount sufficient to achieve a desired melt viscosity.
Inventors
- 👤 Michael A. Patrick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:58
CPC Classifications
C; C06; C06B; C06B21/00; C06B21/0033; C06B21/005; C06B23/00; C06B23/009; C06B33/00
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
70 words
A method for improving the dispersion of particulate materials in intermolecular explosive compositions which comprises dry blending at least one fuel compound and at least one oxidizer compound, a viscosity modifier and a dispersible particulate material, melt blending the resulting dry blend, and thereafter casting the melt, wherein said dispersible particulate material is at least one other fuel or oxidizer-rich component different from said fuel compound and said oxidizer compound.
Claim 2
Independent Claim
70 words
A method for improving the dispersion of particulate materials in intermolecular explosive compositions which comprises dry blending at least one fuel compound and at least one oxidizer compound, a viscosity modifier and a dispersible particulate material, melt blending the resulting dry blend, and thereafter casting the melt, wherein said dispersible particulate material is at least one other fuel or oxidizer-rich component different from said fuel compound and said oxidizer compound.
Claim 3
Dependent Claim
21 words
The method of claim 1 wherein said viscosity modifier is added in an amount sufficient to achieve a desired melt viscosity.
Claim 4
Dependent Claim
43 words
The method of claim 1 wherein said oxidizer compound is selected from the group consisting of the nitrate, chlorate and perchlorate salts of lithium, sodium, potassium, magnesium, calcium, strontium, barium, copper, zinc, manganese and lead, and ammonium nitrate, ammonium chlorate and ammonium perchlorate.
Claim 5
Dependent Claim
53 words
The method of claim 1 wherein said fuel compound is selected from the group consisting of the nitrate and perchlorate adducts of ethanolamine, ethylenediamine and higher homologs, aliphatic amides, urea nitrate, urea perchlorate, nitroguanidine, guanidine nitrate and perchlorate, triaminoguanidine nitrate and perchlorate, polyols, ammonium and metal salts of carboxylic acids, and sulfur-containing compounds.
Claim 6
Dependent Claim
16 words
The method of claim 1 wherein said viscosity modifier is a cationic salt of carboxymethylcellulose ether.
Claim 7
Dependent Claim
23 words
The method of claim 5 wherein the quantity of viscosity modifier added to the melt is about 0.1 to 3 0 wt %.
Claim 8
Dependent Claim
18 words
The method of claim 1 wherein said particulate material comprises at least one other fuel-rich or oxidizer-rich component.
Claim 9
Dependent Claim
12 words
The method of claim 1 wherein said particulate material is aluminum powder.
Claim 10
Dependent Claim
24 words
The method of claim 1 wherein said composition consists of ethylenediamine dinitrate, ammonium nitrate, potassium nitrate, aluminum powder and sodium salt of carboxymethylcelulose ether.
Claim 11
Dependent Claim
24 words
The method of claim 1 wherein said composition consists of methylnitroguanidine, ammonium n , sodium nitrate, aluminum powder and sodium salt of carboxymethylcellulose ether.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-09-08 | 1996-03-09 | 1996-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-09-08 | 2000-03-09 | 2000-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-09-08 | 2004-03-09 | 2004-09-08 | $7700.00 | Window Closed / Lapsed |