US3060050A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Black masterbatch preparation
Assignee: United Rubber and Chemical Co
•
Filing: 1960-05-11
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Granted: 1962-10-23
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Expires: 1980-05-11
Abstract
No abstract record available.
Inventors
- 👤 Pritchard P Ells
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:52
CPC Classifications
C; C08; C08J; C08J3/00; C08J3/20; C08J3/205; C08J3/21; C08J3/215; C08L; C08L21/00; C08J2321/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
86 words
IN THE PREPARATION OF BLACK MASTERBATCH IN WHICH A DISPERSING AGENT-FREE AQUEOUS DISPERSION OF CARBON BLACK IS ADDED TO A SYMTHETIC RUBBER LATEX AND THE RUSULTANT MIXTURE SUBJECTING TO COAGULATION, THE IMPROVEMENT FOR MINIMIZING THE SETTLING OUT OF CARBON BLACK FROM SAID DISPERSION PRIOR TO ITS ADDITION TO THE SYNTHETIC LATEX WHICH COMPRISES: INCORPORATING IN SAID DISPERSION AT LEAST ABOUT 5% BY WEIGHT OF THE CARBON BLACK OF A SYNTHETIC RUBBER EXTENDER OIL SELECTED FROM THE GROUP CONSISTING OF NAPHTHENIC, AROMATIC AND HIGHLY AROMATIC MINERAL OILS.
Claim 2
Dependent Claim
86 words
IN THE PREPARATION OF BLACK MASTERBATCH IN WHICH A DISPERSING AGENT-FREE AQUEOUS DISPERSION OF CARBON BLACK IS ADDED TO A SYMTHETIC RUBBER LATEX AND THE RUSULTANT MIXTURE SUBJECTING TO COAGULATION, THE IMPROVEMENT FOR MINIMIZING THE SETTLING OUT OF CARBON BLACK FROM SAID DISPERSION PRIOR TO ITS ADDITION TO THE SYNTHETIC LATEX WHICH COMPRISES: INCORPORATING IN SAID DISPERSION AT LEAST ABOUT 5% BY WEIGHT OF THE CARBON BLACK OF A SYNTHETIC RUBBER EXTENDER OIL SELECTED FROM THE GROUP CONSISTING OF NAPHTHENIC, AROMATIC AND HIGHLY AROMATIC MINERAL OILS.
References Cited (Backward Citations)
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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) | 1965-10-22 | 1966-04-23 | 1966-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-22 | 1970-04-23 | 1970-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-22 | 1974-04-23 | 1974-10-23 | $7700.00 | Window Closed / Lapsed |