US2658049A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of synthetic rubbercarbon black mixtures
Assignee: Uniroyal Inc
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Filing: 1950-11-10
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Granted: 1953-11-03
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Expires: 1970-11-10
Abstract
No abstract record available.
Inventors
- 👤 James W Adams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:05
CPC Classifications
B; B01; B01F; B01F25/00; B01F25/70; B01F25/74; B01F25/741
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
80 words
IN THE PREPARATION OF A SYNTHETIC RUBBERCARBON BLACK MIX BY COAGULATION OF A MIXTURE OF A SYNTHETIC RUBBER LATEX AND AN AQUEOUS DISPERSION OF CARBON BLACK, THE STEP OF IMPARTING A HIGH SPEED CENTRIFUGAL MOTION TO AN UNCOAGULATED MIXTURE OF AN AQUEOUS DISPERSION OF CARBON BLACK AND A SYNTHETIC RUBBER LATEX IN WHICH THE CARBON BLACK PARTICLES AND SYNTHEIC RUBBER PARTICLES ARE BOTH NEGATIVELY CHARGED, AND IMPINGING THE MIXTURE AGAINST A STATIONARY BAFFLE, AND THERAFTER COAGULATING THE THUS TRATED MIXTURE.
Claim 2
Dependent Claim
80 words
IN THE PREPARATION OF A SYNTHETIC RUBBERCARBON BLACK MIX BY COAGULATION OF A MIXTURE OF A SYNTHETIC RUBBER LATEX AND AN AQUEOUS DISPERSION OF CARBON BLACK, THE STEP OF IMPARTING A HIGH SPEED CENTRIFUGAL MOTION TO AN UNCOAGULATED MIXTURE OF AN AQUEOUS DISPERSION OF CARBON BLACK AND A SYNTHETIC RUBBER LATEX IN WHICH THE CARBON BLACK PARTICLES AND SYNTHEIC RUBBER PARTICLES ARE BOTH NEGATIVELY CHARGED, AND IMPINGING THE MIXTURE AGAINST A STATIONARY BAFFLE, AND THERAFTER COAGULATING THE THUS TRATED MIXTURE.
References Cited (Backward Citations)
US2502445A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-11-02 | 1957-05-04 | 1957-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-11-02 | 1961-05-04 | 1961-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-11-02 | 1965-05-04 | 1965-11-03 | $7700.00 | Window Closed / Lapsed |