US3010794A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Carbon black process
Assignee: Cabot Corp
•
Filing: 1958-08-19
•
Granted: 1961-11-28
•
Expires: 1978-08-19
Abstract
No abstract record available.
Inventors
- 👤 George F Friauf
- 👤 Thorley Brian
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:52
CPC Classifications
C; C09; C09C; C09C1/00; C09C1/44; C09C1/48; C09C1/50; C01; C01P; C01P2002/00; C01P2002/50; C01P2002/52
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
106 words
IN A PROCESS FOR MAKING CARBON BLACK BY THE THERMAL DECOMPOSITION IN A HIGH TEMPERATURE, CARBON FORMING REACTION ZONE OF FLUID HYDROCARNON RAW MATERIAL THE IMPROVEMENT WHICH COMRPISES CONTROLLING THE QUALITY OF THE CARBON BLACK PRODUCT OBTAINED BY CONTINUOUSLY INTRODUCING AT A CONTROLLED RATE INTO SAID CARBON FORMING REACTION ZONE A SUBSTRATE COMPRISING AN ALKALI METAL HAVING A ATOMIC NUMBER OF AT LEAST 19 IN AMOUNTS SUFFICIENT TO PROVIDE AT LEAST 1 PART BY WEIGHT PER MILLION PARTS BY WEIGHT OF SAID ALKALI METAL OF CARBON BLACK PRODUCED, SAID PROPORTION OF ALKALI METAL BEING DIRECTLY RELATED TO THE DEGREE OF QUALITY ADJUSTMENT NEEDED IN SAID BLACK.
Claim 2
Dependent Claim
106 words
IN A PROCESS FOR MAKING CARBON BLACK BY THE THERMAL DECOMPOSITION IN A HIGH TEMPERATURE, CARBON FORMING REACTION ZONE OF FLUID HYDROCARNON RAW MATERIAL THE IMPROVEMENT WHICH COMRPISES CONTROLLING THE QUALITY OF THE CARBON BLACK PRODUCT OBTAINED BY CONTINUOUSLY INTRODUCING AT A CONTROLLED RATE INTO SAID CARBON FORMING REACTION ZONE A SUBSTRATE COMPRISING AN ALKALI METAL HAVING A ATOMIC NUMBER OF AT LEAST 19 IN AMOUNTS SUFFICIENT TO PROVIDE AT LEAST 1 PART BY WEIGHT PER MILLION PARTS BY WEIGHT OF SAID ALKALI METAL OF CARBON BLACK PRODUCED, SAID PROPORTION OF ALKALI METAL BEING DIRECTLY RELATED TO THE DEGREE OF QUALITY ADJUSTMENT NEEDED IN SAID BLACK.
References Cited (Backward Citations)
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Cited
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Cited
US2632713A
Cited
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Cited
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Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-11-27 | 1965-05-29 | 1965-11-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-11-27 | 1969-05-29 | 1969-11-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-11-27 | 1973-05-29 | 1973-11-28 | $7700.00 | Window Closed / Lapsed |