US3211720A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrazine based solid propellant
Assignee: Bell Aerospace Corp
•
Filing: 1958-08-08
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Granted: 1965-10-12
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Expires: 1978-08-08
Abstract
No abstract record available.
Inventors
- 👤 Heubusch Henry Philip
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 17:57
CPC Classifications
C; C06; C06B; C06B47/00; C06B47/02; C06B47/08; C06B45/00; C06B45/04; C06B45/06; C06B45/10; C06B45/105
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
130 words
A METHOD OF MAKING A POLYMER CHARACTERIZED BY ITS ABILITY TO DECOMPOSE TO EVOLVE SUFFICIENT QUANTITY OF GASEOUS PRODUCTS AS TO RENDER THE POLYMER USEFUL AS A ROCKET FUEL AND THE LIKE, WHIC COMPRISES NEUTRALIZING HYDRAZINE WITH AN INORGANIC OXIDIZING ACID, SELECTED FROM THE GROUP CONSISTING OF PERCHLKORIC ACID, NITRIC ACID, SULFURIC ACID, PHOSPHORIC ACID AND MIXTURES THEREOF, CONDENSING THE SALT THUS FORMED BY HEATING THE SAME IN CONTACT WITH A POLYFUNCTIONAL COMPOUND SELECTED FROM THE GROUP CONSISTING OF (CH2)X(COOH)2, (CH2)X(COOOC) AND MIXTURES THEREOF WHERE X IS 0 TO 8, Y IS A HALOGEN, AND WHEREIN THE HYDRAZINE, THE OXIDIZING ACID AND POLYFUNCTIONAL COMPOUND ARE SELECTED TO GIVE A CARBON-OXYGEN BALANCE WHICH AFFORDS SUBSTANTIALLY COMPLETE DECOMPOSITION OF THE POLYMER. AND CONTINUING SUCH HEATING TO RENDER THE CONDENSATION REACTION SUBSTANTIALLY COMPLETE.
Claim 2
Independent Claim
130 words
A METHOD OF MAKING A POLYMER CHARACTERIZED BY ITS ABILITY TO DECOMPOSE TO EVOLVE SUFFICIENT QUANTITY OF GASEOUS PRODUCTS AS TO RENDER THE POLYMER USEFUL AS A ROCKET FUEL AND THE LIKE, WHIC COMPRISES NEUTRALIZING HYDRAZINE WITH AN INORGANIC OXIDIZING ACID, SELECTED FROM THE GROUP CONSISTING OF PERCHLKORIC ACID, NITRIC ACID, SULFURIC ACID, PHOSPHORIC ACID AND MIXTURES THEREOF, CONDENSING THE SALT THUS FORMED BY HEATING THE SAME IN CONTACT WITH A POLYFUNCTIONAL COMPOUND SELECTED FROM THE GROUP CONSISTING OF (CH2)X(COOH)2, (CH2)X(COOOC) AND MIXTURES THEREOF WHERE X IS 0 TO 8, Y IS A HALOGEN, AND WHEREIN THE HYDRAZINE, THE OXIDIZING ACID AND POLYFUNCTIONAL COMPOUND ARE SELECTED TO GIVE A CARBON-OXYGEN BALANCE WHICH AFFORDS SUBSTANTIALLY COMPLETE DECOMPOSITION OF THE POLYMER. AND CONTINUING SUCH HEATING TO RENDER THE CONDENSATION REACTION SUBSTANTIALLY COMPLETE.
Claim 3
Independent Claim
134 words
A METHOD OF MAKING A POLYMER CHARACTERIZED BY ITS ABILITY TO DECOMPOSE TO EVOLVE SUFFICIENT QUANTITY OF GASEOUS PRODUCTS AS TO RENDER THE POLYMER USEFUL AS A ROCKET FUEL AND THE LIKE, WHICH COMPRISES NEUTRALIZING A HYDROXY ALKYL HYDRAZINE WITH AN INORGANIC OXIDIZING ACID SELECTED FRM THE GROUP CONSISTING OF PERCHLKORIC ACID, NITRIC ACID, SULFURIC ACID, PHOSPHORIC ACID AND MIXTURES THEREOF, CONDENSING THE SALT THUS FORMED BY HEATING THE SAME IN CONTACT WITH A POLYFUNCTIONAL COMPOUND SELECTED FROM THE GROUP CONSISTING OF (CH2)X(COOH)2, (CH2)X(COY)2, (CH2)X(COOOC) AND MIXTURES THEREOF WHERE X IS 0 TO 8, Y IS A HALOGEN, AND WHEREIN THE HYDRAZINE, THE OXIDIZING ACID AND POLYFUNCTIONAL COMPOUND ARE SELECTED TO GIVE A CARBON-OXYGEN BALANCE WHICH AFFORDS SUBSTANTIALLY COMPLETE DECOMPOSITION OF THE POLYMER, AND CONTINUING SUCH HEATIANG TO RENDER THE CONDENSATION REACTION SUBSTANTIALLY COMPLETE.
Claim 4
Independent Claim
134 words
A METHOD OF MAKING A POLYMER CHARACTERIZED BY ITS ABILITY TO DECOMPOSE TO EVOLVE SUFFICIENT QUANTITY OF GASEOUS PRODUCTS AS TO RENDER THE POLYMER USEFUL AS A ROCKET FUEL AND THE LIKE, WHICH COMPRISES NEUTRALIZING A HYDROXY ALKYL HYDRAZINE WITH AN INORGANIC OXIDIZING ACID SELECTED FRM THE GROUP CONSISTING OF PERCHLKORIC ACID, NITRIC ACID, SULFURIC ACID, PHOSPHORIC ACID AND MIXTURES THEREOF, CONDENSING THE SALT THUS FORMED BY HEATING THE SAME IN CONTACT WITH A POLYFUNCTIONAL COMPOUND SELECTED FROM THE GROUP CONSISTING OF (CH2)X(COOH)2, (CH2)X(COY)2, (CH2)X(COOOC) AND MIXTURES THEREOF WHERE X IS 0 TO 8, Y IS A HALOGEN, AND WHEREIN THE HYDRAZINE, THE OXIDIZING ACID AND POLYFUNCTIONAL COMPOUND ARE SELECTED TO GIVE A CARBON-OXYGEN BALANCE WHICH AFFORDS SUBSTANTIALLY COMPLETE DECOMPOSITION OF THE POLYMER, AND CONTINUING SUCH HEATIANG TO RENDER THE CONDENSATION REACTION SUBSTANTIALLY COMPLETE.
Claim 5
Independent Claim
93 words
A METHOD OF MAKING A POLYMER CHARACTERIZED BY ITS ABILITY TO DECOMPOSE TO EVOLVE SUFFICIENT QUANTITY OF GASEOUS PRODUCTS AS TO RENDER THE POLYMER USEFUL AS A ROCKET FUEL AND THE LIKE, WHICH COMPRISES NEUTRALIZING N-AMINOETHYLENEIMINE WITH AN INORGANIC OXIDIZING ACID SELECTED FROM THE GROUP CONSISTING OF PERCHLORIC ACID, NITRIC ACID, SULFURIC ACID, PHOSPHORIC ACID AND MIXTURES THEREOF, WHEREIN THE N-AMINOETHYLENEIMINE AND THE OXIDIZING ACID ARE SELECTED TO GIVE A CARBON-OXYGEN BALANCE WHICH AFFORDS SUBSTANTIALLY COMPLETE DECOMPOSITION OF TGHE POLYMER, AND HEATING SUCH SALT TO BREAK THE N-AMINOETHYLENEIMINE RING AND FORM THE POLYMER.
Claim 6
Independent Claim
93 words
A METHOD OF MAKING A POLYMER CHARACTERIZED BY ITS ABILITY TO DECOMPOSE TO EVOLVE SUFFICIENT QUANTITY OF GASEOUS PRODUCTS AS TO RENDER THE POLYMER USEFUL AS A ROCKET FUEL AND THE LIKE, WHICH COMPRISES NEUTRALIZING N-AMINOETHYLENEIMINE WITH AN INORGANIC OXIDIZING ACID SELECTED FROM THE GROUP CONSISTING OF PERCHLORIC ACID, NITRIC ACID, SULFURIC ACID, PHOSPHORIC ACID AND MIXTURES THEREOF, WHEREIN THE N-AMINOETHYLENEIMINE AND THE OXIDIZING ACID ARE SELECTED TO GIVE A CARBON-OXYGEN BALANCE WHICH AFFORDS SUBSTANTIALLY COMPLETE DECOMPOSITION OF TGHE POLYMER, AND HEATING SUCH SALT TO BREAK THE N-AMINOETHYLENEIMINE RING AND FORM THE POLYMER.
Claim 7
Independent Claim
115 words
A METHOD OF MAKING A POLYMER CHARACTERIZED BY ITS ABILITY TO DECOMPOSE TO EVOLVE SUFFICIENT QUANTITY OF GASEOUS PRODUCTS AS TO RENDER THE POLYMER USEFUL AS A ROCKET FUEL AND THE LIKE, WHICH COMPRISES NEUTRALIZING AN UNSATURATED HYDRAZINE DERIVATIVE SELECTED FROM THE GROUP CONSISTING OF ALLYL HYDRAZINE, VINYL HYDRAZINE, UNSYMMETRICAL DIALLYL HYDRAZINE, UNSYMMETRICAL DIVINYL HYDRAZINE, UNSYMMETRICAL ALLYL VINYL HYDRAZINE AND MIXTURES THEREOF WITH AN INORGANIC OXIDIZING ACID SELECTED FROM THE GROUP CONSISTING OF PERCHLORIC ACID, NITRIC ACID, SULFURIC ACID, PHOSPHORIC ACID AND MIXTURES THEREOF, WHEREIN THE UNSATURATED HYDRAZINE DERIVATIVE AND THE OXIDIZING ACID ARE SELECTED TO GIVE A CARBON-OXYGEN BALANCE AFFORDING SUBSTANTIALLY COMPLETE DECOMPOSITION OF THE POLYMER, AND HEATING SUCH SALT TO FORM THE POLYMER.
Claim 8
Independent Claim
115 words
A METHOD OF MAKING A POLYMER CHARACTERIZED BY ITS ABILITY TO DECOMPOSE TO EVOLVE SUFFICIENT QUANTITY OF GASEOUS PRODUCTS AS TO RENDER THE POLYMER USEFUL AS A ROCKET FUEL AND THE LIKE, WHICH COMPRISES NEUTRALIZING AN UNSATURATED HYDRAZINE DERIVATIVE SELECTED FROM THE GROUP CONSISTING OF ALLYL HYDRAZINE, VINYL HYDRAZINE, UNSYMMETRICAL DIALLYL HYDRAZINE, UNSYMMETRICAL DIVINYL HYDRAZINE, UNSYMMETRICAL ALLYL VINYL HYDRAZINE AND MIXTURES THEREOF WITH AN INORGANIC OXIDIZING ACID SELECTED FROM THE GROUP CONSISTING OF PERCHLORIC ACID, NITRIC ACID, SULFURIC ACID, PHOSPHORIC ACID AND MIXTURES THEREOF, WHEREIN THE UNSATURATED HYDRAZINE DERIVATIVE AND THE OXIDIZING ACID ARE SELECTED TO GIVE A CARBON-OXYGEN BALANCE AFFORDING SUBSTANTIALLY COMPLETE DECOMPOSITION OF THE POLYMER, AND HEATING SUCH SALT TO FORM THE POLYMER.
Claim 9
Independent Claim
125 words
A METHOD OF MAKING A POLYMER CHARACTERIZED BY ITS ABILITY TO DECOMPOSE TO EVOLVE SUFFICIENT QUANTITY OF GASEOUS PRODUCTS AS TO RENDER THE POLYMER USEFUL AS A ROCKET FUEL AND THE LIKE, WHICH COMPRISES NEUTRALIZING HYDRAZINE WITH AN INORGANIC OXIDIZING ACID SELECTED FROM THE GROUP CONSISTING OF PERCHLORIC ACID, NITRIC ACID, SULFURIC ACID, PHOSPHORIC ACID AND MIXTURES THEREOF, CONDENSING THE SALT THUS FORMED BY HEATING THE SAME IN CONTACT WITH A CARBONYL COMPOUND HAVING THE STRUCTURE R1COR2 WHERE R1 AND R2 ARE SELECTED FROM THE GROUP CONSISTING OF LOWER ALKYLS AND HYDROGEN, WHEREIN TGHE HYDRAZINE, OXIDIZING ACID AND CARBONYL COMPOUND ARE SELECTED TO GIVE A CARBON-OXYGEN BALANCE AFFORDING SUBSTANTIALLY COMPLETE DECOMPOSITION OF THE POLYMER, AND CONTINUING SUCH HEATING TO RENDER THE CONDENSATION REACTION SUBSTANTIALLY COMPLETE.
Claim 10
Independent Claim
125 words
A METHOD OF MAKING A POLYMER CHARACTERIZED BY ITS ABILITY TO DECOMPOSE TO EVOLVE SUFFICIENT QUANTITY OF GASEOUS PRODUCTS AS TO RENDER THE POLYMER USEFUL AS A ROCKET FUEL AND THE LIKE, WHICH COMPRISES NEUTRALIZING HYDRAZINE WITH AN INORGANIC OXIDIZING ACID SELECTED FROM THE GROUP CONSISTING OF PERCHLORIC ACID, NITRIC ACID, SULFURIC ACID, PHOSPHORIC ACID AND MIXTURES THEREOF, CONDENSING THE SALT THUS FORMED BY HEATING THE SAME IN CONTACT WITH A CARBONYL COMPOUND HAVING THE STRUCTURE R1COR2 WHERE R1 AND R2 ARE SELECTED FROM THE GROUP CONSISTING OF LOWER ALKYLS AND HYDROGEN, WHEREIN TGHE HYDRAZINE, OXIDIZING ACID AND CARBONYL COMPOUND ARE SELECTED TO GIVE A CARBON-OXYGEN BALANCE AFFORDING SUBSTANTIALLY COMPLETE DECOMPOSITION OF THE POLYMER, AND CONTINUING SUCH HEATING TO RENDER THE CONDENSATION REACTION SUBSTANTIALLY COMPLETE.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-10-11 | 1969-04-12 | 1969-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-11 | 1973-04-12 | 1973-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-11 | 1977-04-12 | 1977-10-12 | $7700.00 | Window Closed / Lapsed |