US3645765A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Carbon black pelleting agent
Assignee: Phillips Petroleum Co
•
Filing: 1968-11-20
•
Granted: 1972-02-29
•
Expires: 1988-11-20
Abstract
Abstract A carbon black pelleting agent which acts as a pelleting agent and which acts to disperse the carbon black in rubber which comprises an aqueous solution of a polyethyoxylated fatty acid.
Inventors
- 👤 Arthur E Frazier
- 👤 Robert E Dollinger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:06
CPC Classifications
C; C09; C09C; C09C1/00; C09C1/44; C09C1/48; C09C1/56; C09C1/58; C01; C01P; C01P2004/00; C01P2004/50
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
26 words
The pelleting agent defined in claim 1 in which said fatty acid has a molecular weight in the range of from about 500 to about 1,000.
Claim 2
Dependent Claim
31 words
The addItive defined in claim 1 in which said fatty acid is present in said agent in an amount in the range of from about 0.05 to about 5 weight percent.
Claim 3
Dependent Claim
49 words
Carbon black in pelleted form, said pellet consisting of substantially dry carbon black and the polyethoxylated fatty acid defined in claim 1, said fatty acid being present in said pellet in an amount within the range of from about 0.1 to about 10 weight percent of said carbon black.
Claim 4
Dependent Claim
50 words
Carbon black in pelleted form, said pellet consisting of substantially dry carbon black, molasses and the polyethoxylated fatty acid defined in claim 1, said fatty acid being present in said pellet in an amount within the range of from about 0.1 to about 10 weight percent of said carbon black.
References Cited (Backward Citations)
US2050193A
Cited
US2427238A
Cited
US2635057A
Cited
US2907670A
Cited
US2942997A
Cited
US3094499A
Cited
US3005725A
Cited
US3450666A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-02-28 | 1975-08-30 | 1976-02-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-02-28 | 1979-08-30 | 1980-02-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-02-28 | 1983-08-30 | 1984-02-29 | $7700.00 | Window Closed / Lapsed |