US2939857A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Baked alkyd resins based on tricarboxylic benzene acids
Assignee: Standard Oil Co
•
Filing: 1957-06-14
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Granted: 1960-06-07
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Expires: 1977-06-14
Abstract
No abstract record available.
Inventors
- 👤 Benjamin A Bolton
- 👤 Richard E Van Strien
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:32
CPC Classifications
C; C09; C09D; C09D167/00; C08; C08G; C08G63/00; C08G63/02; C08G63/12; C08G63/46; C08G63/50
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
126 words
AN ALKYD RESIN PREPARED BY (1) REACTING A MEMBER SELECTED FROM THE CLASS CONSISTING OF TRIMELLITIC ACID, TRIMELSIC ACID, HEMIMELLITIC ACID, TRIMELLITIC ANHYDRIDE AND HEMIMELLITIC ANHYDRIDE AND AN ALKANOL CONTAINING FROM 1 TO 30 CARBON ATOMS, IN A MOL RATIO OF SAID ALCOHOL TO SAID MEMBER OF BETWEEN 1 AND ABOUT 1.2, AT A TEMPERATURE ON THE ORDER OF 200*F. AND 350*F., (2) REACTING THE PRODUCT MONOESTER OF STEP 1 WITH A GLYCOL IN A MOL RATIO OF SAID GLYCOL TO SAID PRODUCT MONOESTER OF BETWEEN 1 AND ABOUT 1.2 AT A TEMPERATURE ON THE ORDER OF 350*F. AND 500*F. WHILE CONTINUOUSLY WITHDRAWING WATER OF REACTION THEREFROM FOR A TIME UNTIL A RESIN IS PRODUCED WHICH IS SOLUBLE IN ORGANIC SOLVENTS COMMONLY UTILIZED FOR ALKYD RESINS.
Claim 2
Dependent Claim
126 words
AN ALKYD RESIN PREPARED BY (1) REACTING A MEMBER SELECTED FROM THE CLASS CONSISTING OF TRIMELLITIC ACID, TRIMELSIC ACID, HEMIMELLITIC ACID, TRIMELLITIC ANHYDRIDE AND HEMIMELLITIC ANHYDRIDE AND AN ALKANOL CONTAINING FROM 1 TO 30 CARBON ATOMS, IN A MOL RATIO OF SAID ALCOHOL TO SAID MEMBER OF BETWEEN 1 AND ABOUT 1.2, AT A TEMPERATURE ON THE ORDER OF 200*F. AND 350*F., (2) REACTING THE PRODUCT MONOESTER OF STEP 1 WITH A GLYCOL IN A MOL RATIO OF SAID GLYCOL TO SAID PRODUCT MONOESTER OF BETWEEN 1 AND ABOUT 1.2 AT A TEMPERATURE ON THE ORDER OF 350*F. AND 500*F. WHILE CONTINUOUSLY WITHDRAWING WATER OF REACTION THEREFROM FOR A TIME UNTIL A RESIN IS PRODUCED WHICH IS SOLUBLE IN ORGANIC SOLVENTS COMMONLY UTILIZED FOR ALKYD RESINS.
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) | 1963-06-07 | 1963-12-07 | 1964-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-07 | 1967-12-07 | 1968-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-07 | 1971-12-07 | 1972-06-07 | $7700.00 | Window Closed / Lapsed |