US2956959A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymerization of epoxy compounds
Assignee: Phillips Petroleum Co
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Filing: 1958-06-23
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Granted: 1960-10-18
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Expires: 1978-06-23
Abstract
No abstract record available.
Inventors
- 👤 Clyde V Detter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 02:38
CPC Classifications
C; C08; C08G; C08G65/00; C08G65/02; C08G65/26; C08G65/2642; C08G65/2645; C08G65/266
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
76 words
A PROCESS FOR POLYMERIZING A 1,2-EPOXY-ALKANE CONTAINING FROM 2 TO 8, INCLUSIVE, CARBON ATOMS PER MOLECULE WHICH COMPRISES CONTACTING SAID 1,2-EPOXY-ALKANE WITH A CATALYST COMPRISING A COMPOUND CORRESPONDING TO THE FORMULA M(OR)4, WHEREIN M IS A METAL SELECTED FROM THE GROUP CONSISTING OF TITANIUM, ZIRCONIUM, HAFNIUM AND THORIUM, AND R IS A RADICAL SELECTED FROM THE GROUP CONSISTING OF ALKYL, ALKENYL, CYCLOALKYL, CYCLOALKENYL AND ARYL, SAID CONTACTING OCCURRING IN THE PRESSENCE OF AN INERT LIQUID DILUENT.
Claim 2
Dependent Claim
76 words
A PROCESS FOR POLYMERIZING A 1,2-EPOXY-ALKANE CONTAINING FROM 2 TO 8, INCLUSIVE, CARBON ATOMS PER MOLECULE WHICH COMPRISES CONTACTING SAID 1,2-EPOXY-ALKANE WITH A CATALYST COMPRISING A COMPOUND CORRESPONDING TO THE FORMULA M(OR)4, WHEREIN M IS A METAL SELECTED FROM THE GROUP CONSISTING OF TITANIUM, ZIRCONIUM, HAFNIUM AND THORIUM, AND R IS A RADICAL SELECTED FROM THE GROUP CONSISTING OF ALKYL, ALKENYL, CYCLOALKYL, CYCLOALKENYL AND ARYL, SAID CONTACTING OCCURRING IN THE PRESSENCE OF AN INERT LIQUID DILUENT.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-10-18 | 1964-04-18 | 1964-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-10-18 | 1968-04-18 | 1968-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-10-18 | 1972-04-18 | 1972-10-18 | $7700.00 | Window Closed / Lapsed |