Patent US3071555A successfully refreshed from Google Patents.
US3071555A
Expired / Lapsed
US
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Process for preparing aqueous dispersion or solvent solution of olefin polymer from polymerization slurry
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1957-05-17
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Granted: 1963-01-01
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Expires: 1977-05-17
Abstract
No abstract record available.
Inventors
- 👤 Hunter Edward Allen
- 👤 Segura Marnell Albin
- 👤 Small Augustus Bailey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:39
CPC Classifications
C; C08; C08J; C08J3/00; C08J3/02; C08J3/03; C08F; C08F10/00; C08J2323/00; C08J2323/02; C08J2323/18; C08J2323/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
135 words
THE PROCESS FOR OBTAINING A DISPERSION OF A RUBBERY POLYMER FROM THE SLURRY FORMED BY POLYMERIZING ISOOLEFINS HAVING 4 TO 7 CARBON ATOMS AT A TEMPERATURE BETWEEN -40*C. AND -160*C., IN CONTACT WITH A FRIEDELCRAFTS CATALYST DISSOLVED IN A C1 TO C4 ALKYL HALIDE SOLVENT WHICH IS LIQUID AT THE REACTION TEMPERATURE TO FORM A POLYMER SLURRY, WHICH COMPRISES DISCHARGING SAID POLYMER SLURRY DIRECTLY INTO A HEATED, AGITATED MIXTURE OF WATER AND A SOLVENT FOR THE POLYMER SELECTED FROM THE GROUP CONSISTING OF HEXANE, HEPTANE, OCTANE, ISO-OCTANE, THE NONANES, THE DECANES, BENZENE, TOLUENE, AROMATIC HYDROCARBON FRACTIONS BOILING 315*-415*F., CYCLOHEXANE AND CYCLOHEXENE, CARBON TETTRACHLORIDE, TRICHLOROETHYLENE, CARBON DISULFIDE AND METHYL ETHYL KETONE AND WITH THE WATER BEING IN THE CONTINUOUS PHASE IN ORDER TO FLASH OFF THE VOLATILE REACTION LIQUID AND DISSOLVE THE POLYMER IN THE SOLVENT.
Claim 2
Dependent Claim
135 words
THE PROCESS FOR OBTAINING A DISPERSION OF A RUBBERY POLYMER FROM THE SLURRY FORMED BY POLYMERIZING ISOOLEFINS HAVING 4 TO 7 CARBON ATOMS AT A TEMPERATURE BETWEEN -40*C. AND -160*C., IN CONTACT WITH A FRIEDELCRAFTS CATALYST DISSOLVED IN A C1 TO C4 ALKYL HALIDE SOLVENT WHICH IS LIQUID AT THE REACTION TEMPERATURE TO FORM A POLYMER SLURRY, WHICH COMPRISES DISCHARGING SAID POLYMER SLURRY DIRECTLY INTO A HEATED, AGITATED MIXTURE OF WATER AND A SOLVENT FOR THE POLYMER SELECTED FROM THE GROUP CONSISTING OF HEXANE, HEPTANE, OCTANE, ISO-OCTANE, THE NONANES, THE DECANES, BENZENE, TOLUENE, AROMATIC HYDROCARBON FRACTIONS BOILING 315*-415*F., CYCLOHEXANE AND CYCLOHEXENE, CARBON TETTRACHLORIDE, TRICHLOROETHYLENE, CARBON DISULFIDE AND METHYL ETHYL KETONE AND WITH THE WATER BEING IN THE CONTINUOUS PHASE IN ORDER TO FLASH OFF THE VOLATILE REACTION LIQUID AND DISSOLVE THE POLYMER IN THE SOLVENT.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-12-31 | 1966-07-02 | 1967-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-31 | 1970-07-02 | 1971-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-31 | 1974-07-02 | 1975-01-01 | $7700.00 | Window Closed / Lapsed |