US3269880A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat resistant butadiene-acrylonitrile propellants
Assignee: Individual
•
Filing: 1965-01-13
•
Granted: 1966-08-30
•
Expires: 1985-01-13
Abstract
No abstract record available.
Inventors
- 👤 Visnov Martin
- 👤 James H Godsey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 01:52
CPC Classifications
C; C06; C06B; C06B25/00; C06B25/34; C06B21/00; C06B21/0008; C06B21/0025; C06B45/00; C06B45/04; C06B45/06; C06B45/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
116 words
A METHOD FOR MANUFACTURING GRANULATED PROPELLANTS CAPABLE OF WITHSTANDING ELEVATED TEMPERATURES FOR EXTENDED PERIODS COMPRISING THE STEPS OF MIXING ABOUT 12.3 TO 29.6% OF A COPOLYMER BINDER COMPRISING ABOUT 60% BUTADIENE AND 40% ACRYLONTRILE WITH SOLVENT IN A MIXER, MIXNG THEREINTO ABOUT 0.2 TO 0.4% OF A CATALYST CMPRISNG BENZOLYL PERIOXIDE AND TRICRESYL PHOSPHATE, ADDING THEREINTO ABOUT 70.0 TO 87.5% OF HMX IN A PLURALITY OF INCREMENTS IN THE PRESENCE OF A VOLATILE SOLVENT THEREFOR TO FORM A MIXTURE, SOLVENT EXTRUDING SAID MIXTURE, CUTTING THE EXTRUDED PROPELLANT MIXTURE INTO GRANULES OF DESIRED GEOMETRY, DRYING THE PROPELLANT GRANULES AT ELEVATED TEMPERATURE, AND CURING THE PROPELLANT GRANULES AT A TEMPERATURE ABOVE THE BOILING POINT OF THE VOLATILE SOLVENT.
Claim 2
Independent Claim
116 words
A METHOD FOR MANUFACTURING GRANULATED PROPELLANTS CAPABLE OF WITHSTANDING ELEVATED TEMPERATURES FOR EXTENDED PERIODS COMPRISING THE STEPS OF MIXING ABOUT 12.3 TO 29.6% OF A COPOLYMER BINDER COMPRISING ABOUT 60% BUTADIENE AND 40% ACRYLONTRILE WITH SOLVENT IN A MIXER, MIXNG THEREINTO ABOUT 0.2 TO 0.4% OF A CATALYST CMPRISNG BENZOLYL PERIOXIDE AND TRICRESYL PHOSPHATE, ADDING THEREINTO ABOUT 70.0 TO 87.5% OF HMX IN A PLURALITY OF INCREMENTS IN THE PRESENCE OF A VOLATILE SOLVENT THEREFOR TO FORM A MIXTURE, SOLVENT EXTRUDING SAID MIXTURE, CUTTING THE EXTRUDED PROPELLANT MIXTURE INTO GRANULES OF DESIRED GEOMETRY, DRYING THE PROPELLANT GRANULES AT ELEVATED TEMPERATURE, AND CURING THE PROPELLANT GRANULES AT A TEMPERATURE ABOVE THE BOILING POINT OF THE VOLATILE SOLVENT.
References Cited (Backward Citations)
US3154449A
Cited
US3152027A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-08-29 | 1970-02-28 | 1970-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-29 | 1974-02-28 | 1974-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-29 | 1978-02-28 | 1978-08-30 | $7700.00 | Window Closed / Lapsed |