US3086896A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nitroguanidine propellant composition and process of preparation
Assignee: Individual
•
Filing: 1961-01-19
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Granted: 1963-04-23
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Expires: 1981-01-19
Abstract
No abstract record available.
Inventors
- 👤 Russell L Trask
- 👤 Sage Samuel
- 👤 Isidore G Nadel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 13:34
CPC Classifications
C; C06; C06B; C06B21/00; C06B21/0033; C06B21/0075; C06B23/00; C06B23/006; C06B25/00; C06B25/18; C06B25/24; C06B25/34
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
133 words
IN THE PROCESS OF PREPARATION OF AN EXTRUDABLE PROPELLANT COMPOSITION WHICH COMPRISES FORMING A MIXTURE CONSISTING ESSENTIALLY OF, IN PROPORTIONS BY WEIGHT, 50-65% NITROGUANIDINE, IN A STATE OF COMMINUTION SUCH THAT THE PARTICLES HAVE A SURFACE OF FROM 9,000-22,000 CM.2/CM.3, 16-23% PYROCELLULOSE, AND 16-21% OF A NITRIC ACID ESTER OF A POLYHYDRIC ALCOHOL FROM THE GROUP CONSISTING OF DIETHYLENE GLYCOL, TRIETHYLENE GLYCOL, GLYCERIN AND BUTANETRIOL, THE IMPROVEMENT WHICH COMPRISES STABILIZING AND INCREASING THE DISPERSION OF THE SAID NITROGUANIDINE AND THE SAID NITROCELLULOSE IN THE SAID NITRIC ACID ESTER BY ADDING TO THE SAID MIXTURE THEREOF A MINOR PROPORTION OF A DIALKYLPHTHALATE, WHEREIN THE SAID ALKYL GROUPS CONTAIN FROM 1-6 CARBON ATOMS, AND A MINOR PROPORTION OF A NITRODIPHENYLAMINE AND HOMOGENIZING THE SAID MIXTURE AT AN ELEVATED TEMPERATURE, UNTIL A HOMOGENEOUS COLLOID IS FORMED.
Claim 2
Dependent Claim
133 words
IN THE PROCESS OF PREPARATION OF AN EXTRUDABLE PROPELLANT COMPOSITION WHICH COMPRISES FORMING A MIXTURE CONSISTING ESSENTIALLY OF, IN PROPORTIONS BY WEIGHT, 50-65% NITROGUANIDINE, IN A STATE OF COMMINUTION SUCH THAT THE PARTICLES HAVE A SURFACE OF FROM 9,000-22,000 CM.2/CM.3, 16-23% PYROCELLULOSE, AND 16-21% OF A NITRIC ACID ESTER OF A POLYHYDRIC ALCOHOL FROM THE GROUP CONSISTING OF DIETHYLENE GLYCOL, TRIETHYLENE GLYCOL, GLYCERIN AND BUTANETRIOL, THE IMPROVEMENT WHICH COMPRISES STABILIZING AND INCREASING THE DISPERSION OF THE SAID NITROGUANIDINE AND THE SAID NITROCELLULOSE IN THE SAID NITRIC ACID ESTER BY ADDING TO THE SAID MIXTURE THEREOF A MINOR PROPORTION OF A DIALKYLPHTHALATE, WHEREIN THE SAID ALKYL GROUPS CONTAIN FROM 1-6 CARBON ATOMS, AND A MINOR PROPORTION OF A NITRODIPHENYLAMINE AND HOMOGENIZING THE SAID MIXTURE AT AN ELEVATED TEMPERATURE, UNTIL A HOMOGENEOUS COLLOID IS FORMED.
References Cited (Backward Citations)
US2027114A
Cited
US2557463A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-04-22 | 1966-10-22 | 1967-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-22 | 1970-10-22 | 1971-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-22 | 1974-10-22 | 1975-04-23 | $7700.00 | Window Closed / Lapsed |