US4239561A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plateau propellant compositions
Assignee: United States Department of the Navy
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Filing: 1973-11-29
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Granted: 1980-12-16
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Expires: 1993-11-29
Abstract
Abstract The addition of monobasic cupric β-resorcylate to a double base propant plasticized by only nitrate esters having primary nitroxy groups in order to obtain a plateau burning characteristic.
Inventors
- 👤 Albert T. Camp
- 👤 Elmer R. Csanady
- 👤 Paul R. Mosher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:57
CPC Classifications
C; C06; C06B; C06B23/00; C06B23/007; C06B25/00; C06B25/18; C06B25/20
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
30 words
In a double base propellant plasticized by primary bonded nitrate esters, the improvement comprising adding about 0.2 to about 2 weight percent of monobasic cupric β-resorcylate as a ballistic modifier.
Claim 2
Dependent Claim
30 words
In a double base propellant plasticized by primary bonded nitrate esters, the improvement comprising adding about 0.2 to about 2 weight percent of monobasic cupric β-resorcylate as a ballistic modifier.
Claim 3
Dependent Claim
18 words
The improved propellant of claim 1 wherein 0.5 to 1.5 weight percent of monobasic cupric β-resorcylate is added.
Claim 4
Dependent Claim
18 words
The improved propellant of claim 1 wherein 0.7 to 1 weight percent of monobasic cupric β-resorcylate is added.
Claim 5
Dependent Claim
45 words
A double base propellant composition comprising a binder, a plasticizer selected from the group consisting of pentacrythritol trinitrate (PETRIN), diethylene glycol dinitrate (DEGDN), metriol trinitrate (MTN), triethylene glycol dinitrate (TEGDN), and mixtures thereof, and about 0.2 to about 2 weight percent of monobasic cupric β-resorcylate.
Claim 6
Dependent Claim
45 words
A double base propellant composition comprising a binder, a plasticizer selected from the group consisting of pentacrythritol trinitrate (PETRIN), diethylene glycol dinitrate (DEGDN), metriol trinitrate (MTN), triethylene glycol dinitrate (TEGDN), and mixtures thereof, and about 0.2 to about 2 weight percent of monobasic cupric β-resorcylate.
Claim 7
Dependent Claim
49 words
The propellant of claim 4 wherein said binder constitutes from about 35 to about 65 weight percent of nitrocellulose (NC), said plasticizer consists of about 20 to about 60 weight percent of metriol nitrate (MTN) and from about 2 to about 15 weight percent of triethylene glycol dinitrate (TEGDN).
Claim 8
Dependent Claim
50 words
The propellant of claim 4 wherein said binder constitutes 45 to 55 weight percent of nitrocellulose (NC), the plasticizer comprises 30 to 50 weight percent of metriol trinitrate (MTN) and 4 to 10 weight percent of triethylene gylcol dinitrate (TEGDN), and monobasic cupric resorcylate constitutes 0.5 to 1.5 weight percent.
Claim 9
Dependent Claim
49 words
The propellant of claim 6 wherein the monobasic cupric β-resorcylate comprises from about 0.7 to about 1.0 weight percent of the composition, and the composition additionally contains from about 1.5 to about 3 weight percent of 2-nitrodiphenylamine, and from about 1 to about 3 weight percent of di-n-propyl adipate.
Claim 10
Independent Claim
33 words
A method of producing a plateau burning characteristic in a double base propellant plasticized by primary bonded nitrate esters comprising adding from about 0.2 to about 2 weight percent of monobasic cupric β-resorcylate.
Claim 11
Independent Claim
33 words
A method of producing a plateau burning characteristic in a double base propellant plasticized by primary bonded nitrate esters comprising adding from about 0.2 to about 2 weight percent of monobasic cupric β-resorcylate.
Claim 12
Dependent Claim
17 words
The method of claim 8 wherein the weight percentages of monobasic cupric β-resorcylate is 0.5 to 1.5.
Claim 13
Dependent Claim
17 words
The method of claim 8 wherein the weight percentage of monobasic cupric β-resorcylate is 0.7 to 1.0.
References Cited (Backward Citations)
US3228338A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-12-16 | 1984-06-16 | 1984-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-12-16 | 1988-06-16 | 1988-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-12-16 | 1992-06-16 | 1992-12-16 | $7700.00 | Window Closed / Lapsed |