US3862864A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plasticized nitrocellulose propellant compositions containing hydrazinium nitroformate and aluminum hydride
Assignee: Dow Chemical Co
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Filing: 1965-06-16
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Granted: 1975-01-28
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Expires: 1985-06-16
Abstract
Abstract The invention is a solid double-base propellant composition comprising on a weight basis from about 5 to about 35 percent of a crystalline substantially non-solvated aluminum hydride, from about 20 to about 38 percent hydrazinium nitroformate and from about 30 to about 60 percent of a plasticized nitrocellulose binder.
Inventors
- 👤 James P Flynn
- 👤 George A Lane
- 👤 John J Plomer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 05:22
CPC Classifications
C; C06; C06B; C06B25/00; C06B25/18; C06B25/22; C06B27/00; C06B47/00; C06B47/02; C06B47/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
49 words
A solid double-base propellant composition comprising on a weight basis a. from about 24 to about 33 percent of a crystalline substantially non-solvated aluminum hydride, b. from about 20 to about 38 percent hydrazinium nitroformate, and c. from about 45 to about 55 percent of a plasticized nitrocellulose binder.
Claim 2
Dependent Claim
69 words
A solid double base propellant composition consisting essentially of on a weight basis a. about 27 percent of a crystalline, substantially non-solvated aluminum hydride, b. about 23 percent hydrazinium nitroformate, and c. about 50 percent of a plasticized nitrocellulose binder, said binder consisting of about 25 parts by weight plastisol grade nitrocellulose and 75 parts by weight of a mixture of 20 weight percent diethyleneglycol dinitrate-80 weight percent trimethylolethanetrinitrate.
References Cited (Backward Citations)
US3002830A
Cited
US3035948A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-01-27 | 1978-07-29 | 1979-01-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-01-27 | 1982-07-29 | 1983-01-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-01-27 | 1986-07-29 | 1987-01-28 | $7700.00 | Window Closed / Lapsed |