US2512697A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making synthetic rubbercarbon black compositions without mastication
Assignee: Individual
•
Filing: 1944-03-24
•
Granted: 1950-06-27
•
Expires: 1964-03-24
Abstract
No abstract record available.
Inventors
- 👤 Grotenhuis Theodore A Te
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 06:09
CPC Classifications
C; C08; C08F; C08F36/00; C08F36/02; C08F36/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
103 words
IN A METHOD OF PREPARING A RUBBERLIKE MATERIAL HAVING PROPERTIES MODIFIED WITH CARBON BLACK, THE STEPS WHICH COMPRISE FORMING IN WATER AND IN THE PRESENCE OF AN EMULSIFIER FOR OILIN-WATER EMULSIONS AN AQUEOUS OIL-IN-WATER TYPE OF EMULSION OF AN ORGANIC LIQUID MIXTURE HAVING CARBON BLACK DISTRIBUTED THEREIN, HAVING AS ONE MAIN POLYMERIZABLE COMPONENT A POLYMERIZABLE CONJUGATED DIOLEFINIC COMPOUND OF LESS THAN NINE ALIPHATIC CARBON ATOMS, AND CONTAINING DISSOLVED THEREIN A THICKENER WHICH IS SOLUBLE IN SAID ORGANIC LIQUID AND WHICH IS SELECTED FROM THE GROUP CONSISTING OF SOLID POLYMERS OF MONO-OLEFINIC COMPOUNDS AND RUBBERY POLYMERS OF CONJUGATED DIOLEFINIC COMPOUNS, AND WHILE MAINTIANING SAID
Claim 2
Dependent Claim
103 words
IN A METHOD OF PREPARING A RUBBERLIKE MATERIAL HAVING PROPERTIES MODIFIED WITH CARBON BLACK, THE STEPS WHICH COMPRISE FORMING IN WATER AND IN THE PRESENCE OF AN EMULSIFIER FOR OILIN-WATER EMULSIONS AN AQUEOUS OIL-IN-WATER TYPE OF EMULSION OF AN ORGANIC LIQUID MIXTURE HAVING CARBON BLACK DISTRIBUTED THEREIN, HAVING AS ONE MAIN POLYMERIZABLE COMPONENT A POLYMERIZABLE CONJUGATED DIOLEFINIC COMPOUND OF LESS THAN NINE ALIPHATIC CARBON ATOMS, AND CONTAINING DISSOLVED THEREIN A THICKENER WHICH IS SOLUBLE IN SAID ORGANIC LIQUID AND WHICH IS SELECTED FROM THE GROUP CONSISTING OF SOLID POLYMERS OF MONO-OLEFINIC COMPOUNDS AND RUBBERY POLYMERS OF CONJUGATED DIOLEFINIC COMPOUNS, AND WHILE MAINTIANING SAID
References Cited (Backward Citations)
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Cited
US2240618A
Cited
US1171187A
Cited
GB328812A
Cited
US1967861A
Cited
US2127591A
Cited
US2244020A
Cited
US2354424A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-06-26 | 1953-12-26 | 1954-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-06-26 | 1957-12-26 | 1958-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-06-26 | 1961-12-26 | 1962-06-27 | $7700.00 | Window Closed / Lapsed |