US2955094A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for preparing stable isoolefinmultiolefin rubbery polymer latices containing ortho-phosphoric acid and organic sulfate salts
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1956-06-21
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Granted: 1960-10-04
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Expires: 1976-06-21
Abstract
No abstract record available.
Inventors
- 👤 Robert S Brodkey
- 👤 Alfred L Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:15
CPC Classifications
C; C08; C08J; C08J3/00; C08J3/02; C08J3/03; C08J3/07; C08J2323/00; C08J2323/02; C08J2323/18; C08J2323/20; C08J2323/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
130 words
A PROCESS FOR THE PREPARATION OF A STABLE RUBBER LATEX WHICH COMPRISES EMULSIFYING A 15 TO 35% SOLUTION IN A C6 TO C8 HYDROCARBON SOLVENT OF 100 PARTS BY WEIGHT OF A LOW UNSATURATION ISOOLEFIN-DIOLEFIN RUBBERY COPOYLMER, HAVING AN IODINE NUMBER OF BETWEEN ABOUT 1 AND 50, IN WATER CONTAINING ABOUT 0.25 TO 2.0 PARTS BY WEIGHT OF A MONOVALENT ALKALI METAL DIHYDROGEN SALT OF ORTHOPHOSPHORIC ACID AND ABOUT 2 TO 20 PARTS BY WEIGHT OF A WATER SOLUBLE SALT OF AN ORGANIC ALIPHATIC SULFATE HAVING ABOUT 8 TO 14 CARBON ATOMS AND BEING SELECTED FROM THE GROUP CONSISTING OF ALKALI METAL, ALKALINE EARTH, AMINE AND AMMONIUM SALTS, STRIPPING OFF THE SOLVENT FROM THE EMULSION AND RECOVERING A STABLE RUBBER LATEX IN WATER CONTAINING ABOUT 5 TO 65% RUBBER SOLIDS.
Claim 2
Dependent Claim
130 words
A PROCESS FOR THE PREPARATION OF A STABLE RUBBER LATEX WHICH COMPRISES EMULSIFYING A 15 TO 35% SOLUTION IN A C6 TO C8 HYDROCARBON SOLVENT OF 100 PARTS BY WEIGHT OF A LOW UNSATURATION ISOOLEFIN-DIOLEFIN RUBBERY COPOYLMER, HAVING AN IODINE NUMBER OF BETWEEN ABOUT 1 AND 50, IN WATER CONTAINING ABOUT 0.25 TO 2.0 PARTS BY WEIGHT OF A MONOVALENT ALKALI METAL DIHYDROGEN SALT OF ORTHOPHOSPHORIC ACID AND ABOUT 2 TO 20 PARTS BY WEIGHT OF A WATER SOLUBLE SALT OF AN ORGANIC ALIPHATIC SULFATE HAVING ABOUT 8 TO 14 CARBON ATOMS AND BEING SELECTED FROM THE GROUP CONSISTING OF ALKALI METAL, ALKALINE EARTH, AMINE AND AMMONIUM SALTS, STRIPPING OFF THE SOLVENT FROM THE EMULSION AND RECOVERING A STABLE RUBBER LATEX IN WATER CONTAINING ABOUT 5 TO 65% RUBBER SOLIDS.
References Cited (Backward Citations)
CA513483A
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US2357861A
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US2375140A
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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) | 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 |