Patent US4961380A successfully refreshed from Google Patents.
US4961380A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Energetic azido eutectics
Assignee: Boeing North American Inc
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Filing: 1988-02-26
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Granted: 1990-10-09
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Expires: 2008-02-26
Abstract
Abstract A low freezing point eutectic solid propellant plasticizer composition component comprising a mixture of 1,5-dinitrato-3-nitrazapentane and 1,5-diazido-3-nitrazapentane having a eutectic freezing point below about -25° C.
Inventors
- 👤 Joseph E. Flanagan
- 👤 II Dean O. Woolery
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 16:22
CPC Classifications
C; C06; C06B; C06B25/00; C06B25/34; C06B45/00; C06B45/04; C06B45/06; C06B45/10; C06B45/105
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
42 words
In a solid propellant composition including an oxidizer, plasticizer, polymer and fuel, the improvement comprising a low freezing point eutectic solid propellant plasticizer composition component further comprising a mixture of 1,5-dinitrato-3-nitrazapentane and 1,5-diazido-3-nitrazapentane having a eutectic freezing point below about -25° C.
Claim 2
Dependent Claim
42 words
In a solid propellant composition including an oxidizer, plasticizer, polymer and fuel, the improvement comprising a low freezing point eutectic solid propellant plasticizer composition component further comprising a mixture of 1,5-dinitrato-3-nitrazapentane and 1,5-diazido-3-nitrazapentane having a eutectic freezing point below about -25° C.
Claim 3
Dependent Claim
29 words
The solid propellant composition of claim 1 wherein the low freezing point eutectic solid propellant plasticizer composition component comprises a mixture of about 50% 1,5-dinitrato-3-nitrazapentane and about 50% 1,5-diazido-3-nitrazapentane.
Claim 4
Dependent Claim
29 words
The solid propellant plasticizer composition of claim 1 wherein the low freezing point eutectic solid propellant composition component comprises a mixture of about 37.5% 1,5-dinitrato-3-nitrazapentane and about 63.5% 1,5-diazido-3-nitrapentane.
Claim 5
Dependent Claim
37 words
A solid propellant composition including an oxidizer blend of HMX and AP, a plasticizer composition component comprising a mixture of 1,5-dinitrato-3-nitrazapentane and 1,5-diazido-3-nitrazapentane having a eutectic freezing point below about -25° C., GAP and an aluminum fuel.
Claim 6
Dependent Claim
37 words
A solid propellant composition including an oxidizer blend of HMX and AP, a plasticizer composition component comprising a mixture of 1,5-dinitrato-3-nitrazapentane and 1,5-diazido-3-nitrazapentane having a eutectic freezing point below about -25° C., GAP and an aluminum fuel.
Claim 7
Dependent Claim
28 words
A solid propellant composition comprising an oxidizer blend of 57.8 weight percent HMX and 12.2 weight percent AP, 10.0 weight percent of a 50/50 blend of DANPE:DINA plasticizer.
Claim 8
Dependent Claim
28 words
A solid propellant composition comprising an oxidizer blend of 57.8 weight percent HMX and 12.2 weight percent AP, 10.0 weight percent of a 50/50 blend of DANPE:DINA plasticizer.
Claim 9
Dependent Claim
25 words
The solid propellant composition of claim 5 wherein the plasticizer comprises a 10.0 weight percent of a 63.5 weight percent/37.5 weight percent blend of DANPE:DINA.
Claim 10
Dependent Claim
25 words
The solid propellant composition of claim 5 wherein the plasticizer comprises a 10.0 weight percent of a 71.0 weight percent/29.0 weight percent blend of DANPE:DINA.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-10-08 | 1994-04-09 | 1994-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-10-08 | 1998-04-09 | 1998-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-10-08 | 2002-04-09 | 2002-10-09 | $7700.00 | Window Closed / Lapsed |