US5024708A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Castable and/or pressable gas generating propellants
Assignee: Nigu Chemie GmbH
•
Filing: 1990-07-11
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Granted: 1991-06-18
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Expires: 2010-07-11
Abstract
Abstract Gas generating propellants with flame temperatures below 1400° K. (isobaric) based on duroplastic and/or thermoplastic binders containing up to 80% by weight of triaminoguanidine nitrate as the chief gas generating component which can be cast or pressed into shapes having good chemical stability and excellent mechanical properties useful in propulsion engines and energy yielding systems.
Inventors
- 👤 Eduard Gast
- 👤 Peter Semmler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:30
CPC Classifications
C; C06; C06B; C06B25/00; C06B25/34; C06B45/00; C06B45/04; C06B45/06; C06B45/10
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
95 words
A gas generating propellent composition with flame temperature below 1400° K. (isobaric) when are castable and/or pressable consisting essentially of at least one resin binder which is at least one member of the group consisting of polyurethane, polyesters, polybutadienes, ethyl cellulose, cellulose acetate and polybutylenes, optionally at least one additive selected from the group consisting of wetting agents, stabilizers, plasticizers and buring moderators and as the major gas generating constituent, 60 to 80% by weight of triaminoguanidine nitrate based total composition weight said composition being free of nitramine oxidizers, mitrocellulose binder, energetic plasticizers and recorcinol.
Claim 2
Dependent Claim
95 words
A gas generating propellent composition with flame temperature below 1400° K. (isobaric) when are castable and/or pressable consisting essentially of at least one resin binder which is at least one member of the group consisting of polyurethane, polyesters, polybutadienes, ethyl cellulose, cellulose acetate and polybutylenes, optionally at least one additive selected from the group consisting of wetting agents, stabilizers, plasticizers and buring moderators and as the major gas generating constituent, 60 to 80% by weight of triaminoguanidine nitrate based total composition weight said composition being free of nitramine oxidizers, mitrocellulose binder, energetic plasticizers and recorcinol.
Claim 3
Dependent Claim
18 words
A composition of claim 1 wherein the binder is 5 tp 20% by weight of the total composition.
References Cited (Backward Citations)
US2929699A
Cited
US3138497A
Cited
US3161550A
Cited
US3383860A
Cited
US3954528A
Cited
US3732131A
Cited
US3909323A
Cited
US4234363A
Cited
US4172743A
Cited
US4092188A
Cited
US4288262A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-06-17 | 1994-12-17 | 1995-06-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-06-17 | 1998-12-17 | 1999-06-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-06-17 | 2002-12-17 | 2003-06-18 | $7700.00 | Window Closed / Lapsed |