Patent US2955097A successfully refreshed from Google Patents.
US2955097A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making oil extended synthetic rubber and carbon black masterbatches
Assignee: Uniroyal Inc
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Filing: 1954-04-26
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Granted: 1960-10-04
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Expires: 1974-04-26
Abstract
No abstract record available.
Inventors
- 👤 Woodrow W White
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:51
CPC Classifications
C; C08; C08J; C08J3/00; C08J3/20; C08J3/22; C08J3/226; C08J2309/00; C08J2491/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
82 words
THE METHOD OF PREPARING AN OIL-CARBON BLACK SYNTHETIC RUBBER MASTERBATCH WHICH COMPRISES FORMING A CATIONIC AQUEOUS DISPERSION OF THE OIL AND CARBON BLACK WITH CATIONIC SURFACE-ACTIVE AGENT, ADDING ANIONIC SURFACEACTIVE AGENT TO SAID CATIONIC DISPERSION IN AMOUNT TO IMPART A NEGATIVE CHARGE TO THE OIL-COATED CARBON BLACK PARTICLES AND TRANSFORM THE DISPERSION INTO AN ANIONIC DISPERSION, MIXING THE THUS FORMED ANIONIC OIL-CARBON BLACK DISPERSION WITH AN ANIONIC, BUTADIENE POLYMER SYNTHETIC RUBBER LATEX, AND CO-COAGULATING THE SYNTHETIC RUBBER AND OIL AND CARBON BLACK.
Claim 2
Independent Claim
82 words
THE METHOD OF PREPARING AN OIL-CARBON BLACK SYNTHETIC RUBBER MASTERBATCH WHICH COMPRISES FORMING A CATIONIC AQUEOUS DISPERSION OF THE OIL AND CARBON BLACK WITH CATIONIC SURFACE-ACTIVE AGENT, ADDING ANIONIC SURFACEACTIVE AGENT TO SAID CATIONIC DISPERSION IN AMOUNT TO IMPART A NEGATIVE CHARGE TO THE OIL-COATED CARBON BLACK PARTICLES AND TRANSFORM THE DISPERSION INTO AN ANIONIC DISPERSION, MIXING THE THUS FORMED ANIONIC OIL-CARBON BLACK DISPERSION WITH AN ANIONIC, BUTADIENE POLYMER SYNTHETIC RUBBER LATEX, AND CO-COAGULATING THE SYNTHETIC RUBBER AND OIL AND CARBON BLACK.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-10-04 | 1964-04-04 | 1964-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-10-04 | 1968-04-04 | 1968-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-10-04 | 1972-04-04 | 1972-10-04 | $7700.00 | Window Closed / Lapsed |