US3304344A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reaction product of a polyepoxy monomer and complex acids derived from solvent extracts of lubricating oils
Assignee: Union Oil Company of California
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Filing: 1961-12-26
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Granted: 1967-02-14
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Expires: 1981-12-26
Abstract
No abstract record available.
Inventors
- 👤 Theodore H Szawlowski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 04:41
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/18; C08G59/40; C08G59/42; C08G59/4223
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
196 words
A FLEXIBLE, NON-SETTING, PRESSURE-SENSITIVE EPOXY RESIN REACTION PRODUCT OF (1) POLYEPOXY MONOMERS HAVING TERMINAL EPOXY GROUPS IN WHICH THE OXYGEN ATOM IS JOINED TO ADJACENT CARBON ATOMS, A MOLECULAR WEIGHT OF ABOUT 1000 TO 3000 AND AND EPOXIDE EQUIVALENT OF AT LEAST ABOUT 140 AND (2) COMPLEX POLYNUCLEAR AROMATIC CARBOXYLIC ACIDS DERIVED FROM SOLVENT EXTRACTS OBTAINED IN THE SOLVENT REFINING OF MINERAL LUBRICATING OILS WITH A SOLVENT SELECTIVE FOR AROMATIC COMPOUNDS BY METALATION OF SAID SOLVENT EXTRACTS TO FORM THE ALKALI METAL ADDUCT, CARBONATION OF SAID ADDUCT TO FORM THE CORRESPONDING ALKALI METAL SALT OF THE CARBOXYLIC ACID AND ACIDIFICATION OF SAID SALT TO FORM THE FREE CARBOXYLIC ACID CHARACTERIZED BY BEING COMPLEX, POLYNUCLEAR AROMATIC, ALKYL-AROMATIC ACIDS PREDOMINATING IN CARBON AND HYDROGEN, CONTAINING ABOUT 0.5 TO 4.5 WT. PERCENT OF SULFUR, HAVING A MOLEUCLAR WEIGHT OF ABOVE ABOUT 300 AND HAVING 1.7 TO 3.5 AVERAGE NUMBER OF AROMATIC RINGS PER AROMATIC MOLECULE, SAID REACTION BEING CONCONDUCTED BY HEATING SAID POLYEPOXY MONOMER WITH ABOUT 10% TO 50% BY WEIGHT OF SAID COMPLEX CARBOXYLIC ACIDS, BASED ON THE WEIGHT OF SAID MONOMERS, AT A TEMPERATURE OF ABOUT 250* TO 370*F. IN THE PRESENCE OF A TERTIARY AMINE CATALYST.
Claim 2
Dependent Claim
196 words
A FLEXIBLE, NON-SETTING, PRESSURE-SENSITIVE EPOXY RESIN REACTION PRODUCT OF (1) POLYEPOXY MONOMERS HAVING TERMINAL EPOXY GROUPS IN WHICH THE OXYGEN ATOM IS JOINED TO ADJACENT CARBON ATOMS, A MOLECULAR WEIGHT OF ABOUT 1000 TO 3000 AND AND EPOXIDE EQUIVALENT OF AT LEAST ABOUT 140 AND (2) COMPLEX POLYNUCLEAR AROMATIC CARBOXYLIC ACIDS DERIVED FROM SOLVENT EXTRACTS OBTAINED IN THE SOLVENT REFINING OF MINERAL LUBRICATING OILS WITH A SOLVENT SELECTIVE FOR AROMATIC COMPOUNDS BY METALATION OF SAID SOLVENT EXTRACTS TO FORM THE ALKALI METAL ADDUCT, CARBONATION OF SAID ADDUCT TO FORM THE CORRESPONDING ALKALI METAL SALT OF THE CARBOXYLIC ACID AND ACIDIFICATION OF SAID SALT TO FORM THE FREE CARBOXYLIC ACID CHARACTERIZED BY BEING COMPLEX, POLYNUCLEAR AROMATIC, ALKYL-AROMATIC ACIDS PREDOMINATING IN CARBON AND HYDROGEN, CONTAINING ABOUT 0.5 TO 4.5 WT. PERCENT OF SULFUR, HAVING A MOLEUCLAR WEIGHT OF ABOVE ABOUT 300 AND HAVING 1.7 TO 3.5 AVERAGE NUMBER OF AROMATIC RINGS PER AROMATIC MOLECULE, SAID REACTION BEING CONCONDUCTED BY HEATING SAID POLYEPOXY MONOMER WITH ABOUT 10% TO 50% BY WEIGHT OF SAID COMPLEX CARBOXYLIC ACIDS, BASED ON THE WEIGHT OF SAID MONOMERS, AT A TEMPERATURE OF ABOUT 250* TO 370*F. IN THE PRESENCE OF A TERTIARY AMINE CATALYST.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-02-13 | 1970-08-15 | 1971-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-13 | 1974-08-15 | 1975-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-13 | 1978-08-15 | 1979-02-14 | $7700.00 | Window Closed / Lapsed |