US3201330A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of forming a carbon article from furfural alcohol and carbon particles
Assignee: United Kingdom Atomic Energy Authority
•
Filing: 1958-11-28
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Granted: 1965-08-17
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Expires: 1978-11-28
Abstract
No abstract record available.
Inventors
- 👤 Price Michael Stuart Thomas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:51
CPC Classifications
D; D01; D01F; D01F9/00; D01F9/08; D01F9/12; C; C04; C04B; C04B35/00; C04B35/515; C04B35/52; C04B35/528; C04B35/532
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
110 words
A PROCESS OF MANUFACTURING A CARBON ARTICLE HAVING HIGH DENSITY AND LOW PERMEABILITY COMPRISING THE STEPS OF FORMING A MIXTURE OF CARBON PARTICLES AND UP TO ABOUT 20% BY WEIGHT OF A LIQUID BINDER MATERIAL CONSISTING ESSENTIALLY OF FURFURYL ALCOHOL AND BEING POLYMERIZABLE TO YIELD A THERMOSETTING RESINOUS MATERIAL, AND WHICH GIVES A HIGH YIELD OF DENSE RELATIVELY LOW PERMEABILITY CARBON ON DECOMPOSITION BY HEAT, EXTRUDING THE FORMED MIXTURE AT ROOM TEMPERATURE AND AT AN EXTRUSION PRESSURE OF FROM ABOUT 8 TO 17 TONS PER SQUARE INCH AND WITHOUT THE INTRODUCTION OF NON-CARBONIZABLE MATERIAL, POLYMERIZING THE BINDER MATERIAL IN SAID MIXTURE, AND HEATNG SAID MIXTURE TO CARBONIZE THE BINDER MATERIAL.
Claim 2
Dependent Claim
110 words
A PROCESS OF MANUFACTURING A CARBON ARTICLE HAVING HIGH DENSITY AND LOW PERMEABILITY COMPRISING THE STEPS OF FORMING A MIXTURE OF CARBON PARTICLES AND UP TO ABOUT 20% BY WEIGHT OF A LIQUID BINDER MATERIAL CONSISTING ESSENTIALLY OF FURFURYL ALCOHOL AND BEING POLYMERIZABLE TO YIELD A THERMOSETTING RESINOUS MATERIAL, AND WHICH GIVES A HIGH YIELD OF DENSE RELATIVELY LOW PERMEABILITY CARBON ON DECOMPOSITION BY HEAT, EXTRUDING THE FORMED MIXTURE AT ROOM TEMPERATURE AND AT AN EXTRUSION PRESSURE OF FROM ABOUT 8 TO 17 TONS PER SQUARE INCH AND WITHOUT THE INTRODUCTION OF NON-CARBONIZABLE MATERIAL, POLYMERIZING THE BINDER MATERIAL IN SAID MIXTURE, AND HEATNG SAID MIXTURE TO CARBONIZE THE BINDER MATERIAL.
References Cited (Backward Citations)
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Cited
US1966553A
Cited
US2270199A
Cited
US2614947A
Cited
GB789663A
Cited
US2837412A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-08-16 | 1969-02-15 | 1969-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-16 | 1973-02-15 | 1973-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-16 | 1977-02-15 | 1977-08-17 | $7700.00 | Window Closed / Lapsed |