US2530772A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Phenolic condensation product
Assignee: Standard Oil Co
•
Filing: 1946-11-23
•
Granted: 1950-11-21
•
Expires: 1966-11-23
Abstract
No abstract record available.
Inventors
- 👤 Carl E Johnson
- 👤 Richard C Waugh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:07
CPC Classifications
C; C08; C08G; C08G16/00; C08G16/02; C08G16/0212
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
121 words
THE PROCESS OF PREPARING A PHENOLIC CONDENSATION PRODUCT WHICH COMPRISES MIXING A SUBSTNTIALLY ANHYDROUS PHENOL WITH A HYDROCRBON COMPLEX PREPARED BY TREATING AN ALIPHATIC HYDROCARBON WITH AN ACTIVE INORGANIC HALIDE OF THE FRIEDEL-CRAFTS TYPE, SAID COMPLEX BEING ESSENTIALLY A CHEMICAL COMBINATION OF SAID INORGANIC HALIDE AND AN UNSATURATED HYDROCARBON OIL HAVING AN AVERAGE MOLECULAR WEIGHT BETWEEN ABOUT 300 AND ABOUT 600 AND CONTAINING AT LEAST TWO DOUBLE BONDS PER MOLECULE, THE RATIO OF SAID PHENOL MIXED WITH SAID HYDROCARBON COMPLEX BEING SELECTED BETWEEN ABOUT 1/4 AND ABOUT 2 MOLS PER MOL OF SAID INORGANIC HALIDE PRESENT IN SAID COMPLEX, SUBJECTING THE RESULTANT MIXTURE TO A REACTION TEMPERATURE BETWEEN ABOUT 0*F. AND ABOUT 200*F., AND SEPARATING A PHENOLIC CONDENSATION PRODUCT THUS PRODUCED.
Claim 2
Dependent Claim
121 words
THE PROCESS OF PREPARING A PHENOLIC CONDENSATION PRODUCT WHICH COMPRISES MIXING A SUBSTNTIALLY ANHYDROUS PHENOL WITH A HYDROCRBON COMPLEX PREPARED BY TREATING AN ALIPHATIC HYDROCARBON WITH AN ACTIVE INORGANIC HALIDE OF THE FRIEDEL-CRAFTS TYPE, SAID COMPLEX BEING ESSENTIALLY A CHEMICAL COMBINATION OF SAID INORGANIC HALIDE AND AN UNSATURATED HYDROCARBON OIL HAVING AN AVERAGE MOLECULAR WEIGHT BETWEEN ABOUT 300 AND ABOUT 600 AND CONTAINING AT LEAST TWO DOUBLE BONDS PER MOLECULE, THE RATIO OF SAID PHENOL MIXED WITH SAID HYDROCARBON COMPLEX BEING SELECTED BETWEEN ABOUT 1/4 AND ABOUT 2 MOLS PER MOL OF SAID INORGANIC HALIDE PRESENT IN SAID COMPLEX, SUBJECTING THE RESULTANT MIXTURE TO A REACTION TEMPERATURE BETWEEN ABOUT 0*F. AND ABOUT 200*F., AND SEPARATING A PHENOLIC CONDENSATION PRODUCT THUS PRODUCED.
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) | 1953-11-20 | 1954-05-22 | 1954-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-11-20 | 1958-05-22 | 1958-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-11-20 | 1962-05-22 | 1962-11-21 | $7700.00 | Window Closed / Lapsed |