Patent US2952654A successfully refreshed from Google Patents.
US2952654A
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US
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Vinyl chloride polymer plasticized with n, n, n', n' tetraalkylphthalamide and process of making
Assignee: Standard Oil Co
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Filing: 1957-12-23
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Granted: 1960-09-13
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Expires: 1977-12-23
Abstract
No abstract record available.
Inventors
- 👤 Chester E Adams
- 👤 O'brien Joseph Paul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 04:45
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/16; C08K5/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
71 words
A VINYL RESIN COMPOSITION WHICH COMPRISES A VINYL CHLORIDE POLYMER SELECTED FROM THE GROUP CONSISTING OF POLYVINYL CHLORIDE AND COPOLYMERS OF AT LEAST 70% VINYL CHLORIDE WITH UP TO 30% OF OTHER MONOMER CONTAINING A VINYLIDENE GROUP COPOLYMERIZABLE THEREWITH IN THE POLYMER MOLECULE, PLASTICIZED WITH FROM ABOUT 10% TO ABOUT 75% BY WEIGHT OF SAID COMPOSITION OF N,N,N,''N''TETRAALKYLPHTHALAMIDE HAVING FROM 1 TO 10 CARBON ATOMS IN EACH OF THE ALKYL GROUPS.
Claim 2
Dependent Claim
71 words
A VINYL RESIN COMPOSITION WHICH COMPRISES A VINYL CHLORIDE POLYMER SELECTED FROM THE GROUP CONSISTING OF POLYVINYL CHLORIDE AND COPOLYMERS OF AT LEAST 70% VINYL CHLORIDE WITH UP TO 30% OF OTHER MONOMER CONTAINING A VINYLIDENE GROUP COPOLYMERIZABLE THEREWITH IN THE POLYMER MOLECULE, PLASTICIZED WITH FROM ABOUT 10% TO ABOUT 75% BY WEIGHT OF SAID COMPOSITION OF N,N,N,''N''TETRAALKYLPHTHALAMIDE HAVING FROM 1 TO 10 CARBON ATOMS IN EACH OF THE ALKYL GROUPS.
References Cited (Backward Citations)
US2843558A
Cited
US2824016A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-09-13 | 1964-03-14 | 1964-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-09-13 | 1968-03-14 | 1968-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-09-13 | 1972-03-14 | 1972-09-13 | $7700.00 | Window Closed / Lapsed |