US3294702A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Derivatives of graphitic oxide and carbon black and the use thereof as thickeners
Assignee: NL Industries Inc
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Filing: 1963-03-27
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Granted: 1966-12-27
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Expires: 1983-03-27
Abstract
No abstract record available.
Inventors
- 👤 Delmar H Larsen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 15:13
CPC Classifications
B; B01; B01J; B01J19/00; B01J19/06; C; C01; C01B; C01B32/00; C01B32/20; C01B32/21; C01B32/23; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2982; Y10T428/2991
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
71 words
A PARTICLE CONSISTING OF A CENTRAL CORE OF CARBON BLACK SURROUNDED BY AN OUTER LAYER OF A COMPOUND HAVING THE FORMULA R1R2R3R4NG, WHERE R1, R2, R3, AND R4 ARE CHOSEN FROM THE GROUP WHICH CONSISTS OF ALKYL RADICALS FROM C1 THROUGH C22, INCLUSIVE, AND HYDROGEN, WITH AT LEAST ONE OF THE R''S BEING A STRAIGHT CHAIN ALKYL FROM 10 TO 22 CARBON ATOMS IN LENGTH AND WHERE G IS GRAPHITIC ANION.
Claim 2
Dependent Claim
71 words
A PARTICLE CONSISTING OF A CENTRAL CORE OF CARBON BLACK SURROUNDED BY AN OUTER LAYER OF A COMPOUND HAVING THE FORMULA R1R2R3R4NG, WHERE R1, R2, R3, AND R4 ARE CHOSEN FROM THE GROUP WHICH CONSISTS OF ALKYL RADICALS FROM C1 THROUGH C22, INCLUSIVE, AND HYDROGEN, WITH AT LEAST ONE OF THE R''S BEING A STRAIGHT CHAIN ALKYL FROM 10 TO 22 CARBON ATOMS IN LENGTH AND WHERE G IS GRAPHITIC ANION.
Claim 3
Dependent Claim
35 words
THE PROCESS OF THICKENING A LIQUID ORGANIC VEHICLE WHICH COMPRISES INTIMATELY ADMIXING THEREWITH PARTICLES IN ACCORDANCE WITH CLAIM 1 TO A SUFFICIENT EXTENT TO IMPACT A SUBSTANTIAL INCREASE IN CONSISTENCY TO THE SAID ORGANIC VEHICLE.
Claim 4
Dependent Claim
89 words
THE PROCESS OF THICKENING A LIQUID ORGANIC VEHICLE WHICH COMPRISES, INTIMATELY MIXING THEREWITH, IN A PROPORTION SUFFICIENT TO IMPART A SUBSTANTIAL INCREASES IN CONSISTENCY TO THE SAID LIQUID ORGANIC VEHICLE, A SALT OF GRAPHITIC OXIDE AND AN ORGANIC ONIUM CATION HAVING THE FORMULA R1R2R3R4N+, WHERE R1, R2, R3, AND R3 ARE CHOSEN FROM THE GROUP WHICH CONSISTS OF ALKYL RADICALS FROM C1 THROUGH C22 INCLUSIVE, AND HYDROGEN, WITH AT LEAST ONE OF THE SAID R''S BEING A STRAIGHT CHAIN ALKYL OF FROM 10 TO 22 CARBON ATOMS IN LENGTH.
Claim 5
Dependent Claim
89 words
THE PROCESS OF THICKENING A LIQUID ORGANIC VEHICLE WHICH COMPRISES, INTIMATELY MIXING THEREWITH, IN A PROPORTION SUFFICIENT TO IMPART A SUBSTANTIAL INCREASES IN CONSISTENCY TO THE SAID LIQUID ORGANIC VEHICLE, A SALT OF GRAPHITIC OXIDE AND AN ORGANIC ONIUM CATION HAVING THE FORMULA R1R2R3R4N+, WHERE R1, R2, R3, AND R3 ARE CHOSEN FROM THE GROUP WHICH CONSISTS OF ALKYL RADICALS FROM C1 THROUGH C22 INCLUSIVE, AND HYDROGEN, WITH AT LEAST ONE OF THE SAID R''S BEING A STRAIGHT CHAIN ALKYL OF FROM 10 TO 22 CARBON ATOMS IN LENGTH.
Claim 6
Dependent Claim
32 words
A LIQUID ORGANIC VEHICLE, SAID VEHICLE HAVING INTIMATELY ADMIXED THEREWITH, PARTICLES IN ACCORDANCE WITH CLAIM 1 TO A SUFFICIENT EXTENT TO IMPART A SUBSTANTIAL INCREASE IN CONSISTENCY TO THE SAID ORGANIC VEHICLE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-12-26 | 1970-06-27 | 1970-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-26 | 1974-06-27 | 1974-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-26 | 1978-06-27 | 1978-12-27 | $7700.00 | Window Closed / Lapsed |