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Patent US3576923A successfully refreshed from Google Patents.
US3576923A
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Phosphorylated alkylphenol/phenol ester mixtures
Assignee: Novartis AG
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Filing: 1967-06-14
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Granted: 1971-04-27
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Expires: 1987-06-14
Abstract
Abstract PHOSPHORYLATED ALKYLPHENOL/PHENOL ESTER MIXTURES IN WHICH THE WEIGHT RATIO OF THE ALKYL MOIETY TO THE PHENOL MOIETY RANGES FROM 0.005 TO ABOUT 0.65, AND THE NUMBER OF CARBON ATOMS PER ALKYL MOIETY RANGES FROM 3 TO 16, PREFERABLY FROM 3 TO 12, WHICH MIXTURES HAVE SATISFACTORY VISCOSITY RANGE AND IMPART TO POLYMERIC MATERIALS AND ESPECIALLY TO POLYVINYLCHLORIDE PLASTICIZED THEREWITH GOOD LIGHT AND HEAT STABILITY; A PROCESS FOR PRODUCING SUCH PHOSPHORYLATED ALKYLPHENOL/PHENOL ESTER MIXTURES; AND POLYMERIC MATERIALS PLASTICIZED THEREWITH.
Inventors
- 👤 Donald Richard Randell
- 👤 Wilfred Pickles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 16:00
CPC Classifications
C; C10; C10M; C10M1/00; C10M1/08; C07; C07F; C07F9/00; C07F9/02; C07F9/06; C07F9/08; C07F9/09; C07F9/12; C08; C08K; C08K5/00; C08K5/49; C08K5/51; C08K5/52; C08K5/521; C08K5/523; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/26; C10L1/2633; C10L1/2641; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/041; C10N; C10N2040/00; C10N2040/08; C10N2050/00; C10N2050/015; C10N2050/02
Claims Analysis
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References Cited (Backward Citations)
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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) | 1974-04-26 | 1974-10-26 | 1975-04-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-04-26 | 1978-10-26 | 1979-04-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-04-26 | 1982-10-26 | 1983-04-27 | $7700.00 | Window Closed / Lapsed |