US3108994A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for preparing terminally reactive polymers
Assignee: Phillips Petroleum Co
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Filing: 1960-10-24
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Granted: 1963-10-29
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Expires: 1980-10-24
Abstract
No abstract record available.
Inventors
- 👤 Robert P Zelinski
- 👤 Charles W Strobel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 02:13
CPC Classifications
C; C08; C08F; C08F8/00; C08C; C08C19/00; C08C19/30; C08C19/42; C08C19/44; C08F36/00; C08F36/02; C08F36/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
149 words
A PROCESS FOR FORMING A TERMINALLY REACTIVE POLYMER HAVING TERMINALLY REACTIVE GROUPS SELECTED FROM THE GROUP CONSISTING OF MERCAPTO, HYDROXY, AND ACIDIC GROUPS, COMPRISING CONTACTING A MONOMER SYSTEM COMPRISING AT LEAST ONE POLYMERIZABLE VINYLIDENE COMPOUND WITH AN ORGANO ALKALI METAL POLYMERIZATION INITIATOR UNDER POLYMERIZATION CONDITIONS TO FORM A POLYMER CONTAINING TERMINAL ALKALI METAL ATOMS AND HAVING THE FORMULA Y-P-Y, WHEREIN P IS SAID POLYMER AND Y IS ONE OF SAID ALKALI METAL ATOMS, REACTING SAID POLYMER CONTAINING TERMINAL ALKALI METAL ATOMS WITH A SUITABLE REAGENT TO FORM A POLYMERIC MATERIAL HAVING THE FORMULA R-P-R, WHERE R IS SELECTED FROM THE GROUP CONSISTING OF -OY, -SY, AND ALKALI METAL SALT OF AN ACID, O BEING OXYGEN AND S BEING SULFUR, AND TREATING SAID POLYMERIC MATERIAL WITH ANHYDROUS HYDROGEN CHLORIDE TO FORM A TERMINALLY REACTIVE POLYMER HAVING TERMINALLY REACTIVE GROUPS SELECGED FROM THE GROUP CONSISTING OF MERCAPTO, HYDROXY, AND ACIDIC GROUPS.
Claim 2
Dependent Claim
149 words
A PROCESS FOR FORMING A TERMINALLY REACTIVE POLYMER HAVING TERMINALLY REACTIVE GROUPS SELECTED FROM THE GROUP CONSISTING OF MERCAPTO, HYDROXY, AND ACIDIC GROUPS, COMPRISING CONTACTING A MONOMER SYSTEM COMPRISING AT LEAST ONE POLYMERIZABLE VINYLIDENE COMPOUND WITH AN ORGANO ALKALI METAL POLYMERIZATION INITIATOR UNDER POLYMERIZATION CONDITIONS TO FORM A POLYMER CONTAINING TERMINAL ALKALI METAL ATOMS AND HAVING THE FORMULA Y-P-Y, WHEREIN P IS SAID POLYMER AND Y IS ONE OF SAID ALKALI METAL ATOMS, REACTING SAID POLYMER CONTAINING TERMINAL ALKALI METAL ATOMS WITH A SUITABLE REAGENT TO FORM A POLYMERIC MATERIAL HAVING THE FORMULA R-P-R, WHERE R IS SELECTED FROM THE GROUP CONSISTING OF -OY, -SY, AND ALKALI METAL SALT OF AN ACID, O BEING OXYGEN AND S BEING SULFUR, AND TREATING SAID POLYMERIC MATERIAL WITH ANHYDROUS HYDROGEN CHLORIDE TO FORM A TERMINALLY REACTIVE POLYMER HAVING TERMINALLY REACTIVE GROUPS SELECGED FROM THE GROUP CONSISTING OF MERCAPTO, HYDROXY, AND ACIDIC GROUPS.
References Cited (Backward Citations)
US1980396A
Cited
US2447610A
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US2631175A
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US3005807A
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US3055952A
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US2952683A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-10-28 | 1967-04-29 | 1967-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-10-28 | 1971-04-29 | 1971-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-10-28 | 1975-04-29 | 1975-10-29 | $7700.00 | Window Closed / Lapsed |