US3078254A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High molecular polymers and method for their preparation
Assignee: Phillips Petroleum Co
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Filing: 1959-07-20
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Granted: 1963-02-19
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Expires: 1979-07-20
Abstract
No abstract record available.
Inventors
- 👤 Robert P Zelinski
- 👤 Henry L Hsieh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 07:57
CPC Classifications
C; C08; C08C; C08C19/00; C08C19/30; C08C19/42; C08C19/44
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
108 words
A PROCESS FOR THE PREPARATION OF POLYMER OF INCREASED MOLECULAR WEIGHT WHICH COMPRISES REACTING AT A TEMPERATURE IN THE RANGE OF -100 TO +150*C. A TERMINALLY REACTIVE POLYMER OF POLYMERIZABLE VINYLIDENE COMPOUNDSS, PRISES A POLYMER OF POLYMERIZABLE VINYLIDENE COMPOUNDS, Y IS A TERMINALLY POSITIONED ALKALI METAL AND N IS AN INTEGER OF 1 TO 4 WITH AN ORGANIC REACTANT MATERIAL HAVING UP TO 20 CARBON ATOMS AND CONTAINING AT LEAST TWO ACTIVE. HALOGEN ATOMS AND BEING OTHERWISE INERT TO SAID ALKALI METAL, EACH HALOGEN ATOMS BEING ATTACHED TO A CARBON ATOM WHICH IS ALPHA TO AN ACTIVATING GROUP SELECTED FROM THE GROUP CONSISTING OF ETHER LINKAGE CARBONYL, AND
Claim 2
Dependent Claim
108 words
A PROCESS FOR THE PREPARATION OF POLYMER OF INCREASED MOLECULAR WEIGHT WHICH COMPRISES REACTING AT A TEMPERATURE IN THE RANGE OF -100 TO +150*C. A TERMINALLY REACTIVE POLYMER OF POLYMERIZABLE VINYLIDENE COMPOUNDSS, PRISES A POLYMER OF POLYMERIZABLE VINYLIDENE COMPOUNDS, Y IS A TERMINALLY POSITIONED ALKALI METAL AND N IS AN INTEGER OF 1 TO 4 WITH AN ORGANIC REACTANT MATERIAL HAVING UP TO 20 CARBON ATOMS AND CONTAINING AT LEAST TWO ACTIVE. HALOGEN ATOMS AND BEING OTHERWISE INERT TO SAID ALKALI METAL, EACH HALOGEN ATOMS BEING ATTACHED TO A CARBON ATOM WHICH IS ALPHA TO AN ACTIVATING GROUP SELECTED FROM THE GROUP CONSISTING OF ETHER LINKAGE CARBONYL, AND
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) | 1966-02-18 | 1966-08-20 | 1967-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-02-18 | 1970-08-20 | 1971-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-02-18 | 1974-08-20 | 1975-02-19 | $7700.00 | Window Closed / Lapsed |