US2570513A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Modified phenolic resins
Assignee: Universal Oil Products Co
•
Filing: 1948-03-30
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Granted: 1951-10-09
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Expires: 1968-03-30
Abstract
No abstract record available.
Inventors
- 👤 Herman S Bloch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:37
CPC Classifications
C; C08; C08G; C08G8/00; C08G8/28; C08G16/00; C08G16/02; C08G16/0212; C08G16/0218; C08G16/0225; C08G8/04; C08G8/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
109 words
A PROCESS FOR THE PRODUCTION OF A RESINOUS PRODUCT WHICH COMPRISES REACTING A MIXTURE OF MONO- AND POLY-ALKENYL AND ALKAPOLYENYL PHENOLS WITH A CARBONYL COMPOUND SELECTED FROM THE GROUP CONSISTING OF THE ALDEHYDES AND KETONES IN THE PRESENCE OF AN ACIDIC CONDENSATION CATALYST AT A TEMPERATURE OF FROM ABOUT 25* C. TO ABOUT 200* C. AND IN THE MOLECULAR RATIO OF SAID CARBONYL COMPOUND TO SAID PHENOLS OF FROM ABOUT 0.5 TO ABOUT 2, SAID PHENOLS BEING THE CONDENSATION PRODUCT OF A HYDROXY AROMATIC COMPOUND CONTAINING AT LEAST THREE SUBSTITUTABLE NUCLEAR HYDROGEN ATOMS WITH A MIXTURE OF CYCLI POLYOLEFINIC HYDROCARBONS HAVING CONJUGATED AND NON-CONJUGATED UNSATURATION IN THE SAME MOLECULE.
Claim 2
Dependent Claim
109 words
A PROCESS FOR THE PRODUCTION OF A RESINOUS PRODUCT WHICH COMPRISES REACTING A MIXTURE OF MONO- AND POLY-ALKENYL AND ALKAPOLYENYL PHENOLS WITH A CARBONYL COMPOUND SELECTED FROM THE GROUP CONSISTING OF THE ALDEHYDES AND KETONES IN THE PRESENCE OF AN ACIDIC CONDENSATION CATALYST AT A TEMPERATURE OF FROM ABOUT 25* C. TO ABOUT 200* C. AND IN THE MOLECULAR RATIO OF SAID CARBONYL COMPOUND TO SAID PHENOLS OF FROM ABOUT 0.5 TO ABOUT 2, SAID PHENOLS BEING THE CONDENSATION PRODUCT OF A HYDROXY AROMATIC COMPOUND CONTAINING AT LEAST THREE SUBSTITUTABLE NUCLEAR HYDROGEN ATOMS WITH A MIXTURE OF CYCLI POLYOLEFINIC HYDROCARBONS HAVING CONJUGATED AND NON-CONJUGATED UNSATURATION IN THE SAME MOLECULE.
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) | 1954-10-08 | 1955-04-09 | 1955-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-10-08 | 1959-04-09 | 1959-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-10-08 | 1963-04-09 | 1963-10-09 | $7700.00 | Window Closed / Lapsed |