US3147313A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for introducing phosphinic and thionophosphinic acid end groups on alkali terinated polymers
Assignee: Phillips Petroleum Co
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Filing: 1959-07-13
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Granted: 1964-09-01
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Expires: 1979-07-13
Abstract
No abstract record available.
Inventors
- 👤 Henry L Hsieh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 03:41
CPC Classifications
C; C08; C08F; C08F8/00; C08F8/40; C08C; C08C19/00; C08C19/30; C08C19/42; C08C19/44
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
83 words
A PROCESS FOR THE PREPARATION OF POLYMER WHICH COMPRISES REACTING A TERMINALLY REACTIVE POLYMER HAVING THE FORMULA AYN, WHEREIN A COMPRISES A POLYMER OF MONOMERS CONTAINING A VINYLIDINE GROUP AND SELECTED FROM THE GROUP CONSISTING OF CONJUGATED DIENES CONTAINING FROM 4 TO 12 CARBON ATOMS, ARYL-SUBSTITUTED OLEFINS, HETEROCYCLIC NITROGEN-CONTAINING MONOMERS, ACRYLIC ACID ESTERS, ALKACRYLIC ACID ESTERS, VINYLFURAN AND VINYL CARBAZOLE, Y IS A TERMINALLY POSITIONED ALKALI METAL, AND N IS AN INTEGER OF 1 TO 4, WITH A REACTANT MATERIAL HAVEING THE FORMULA
Claim 2
Dependent Claim
83 words
A PROCESS FOR THE PREPARATION OF POLYMER WHICH COMPRISES REACTING A TERMINALLY REACTIVE POLYMER HAVING THE FORMULA AYN, WHEREIN A COMPRISES A POLYMER OF MONOMERS CONTAINING A VINYLIDINE GROUP AND SELECTED FROM THE GROUP CONSISTING OF CONJUGATED DIENES CONTAINING FROM 4 TO 12 CARBON ATOMS, ARYL-SUBSTITUTED OLEFINS, HETEROCYCLIC NITROGEN-CONTAINING MONOMERS, ACRYLIC ACID ESTERS, ALKACRYLIC ACID ESTERS, VINYLFURAN AND VINYL CARBAZOLE, Y IS A TERMINALLY POSITIONED ALKALI METAL, AND N IS AN INTEGER OF 1 TO 4, WITH A REACTANT MATERIAL HAVEING THE FORMULA
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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) | 1967-09-01 | 1968-03-02 | 1968-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-01 | 1972-03-02 | 1972-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-01 | 1976-03-02 | 1976-09-01 | $7700.00 | Window Closed / Lapsed |