US2733267A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Synthetic drying oils
Assignee: —
•
Filing: —
•
Granted: 1956-01-31
•
Expires: 1973-01-31
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 09:12
CPC Classifications
C; C09; C09F; C09F7/00; C08; C08C; C08C19/00; C08C19/30; C08C19/34; C08C19/36; Y; Y10; Y10S; Y10S585/00; Y10S585/929; Y10S585/945
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
149 words
A PROCESS FOR IMPROVING THE HARDNESS OF FILMS PREPARED FROM POLYMERIC DRYING OILS WHICH COMPRISES FIRST REACTING THE OIL AT A TEMPERATURE BETWEEN 50 AND 250* C. WITH FROM 0.01% TO AN AMOUNT WHICH WILL CAUSE GELATION OF A REAGENT SELECTED FROM THE GROUP CONSISTING OF MALEIC ACID, FUMARIC ACID, THIOGLYCOLIC ACID, THIOSALICYLIC ACID, MERCAPTOPHTHALIC ACID, ITACONIC ACID, MESACONIC ACID, CITROCONIC ACID, ACRYLIC ACID AND THE ESTERS AND ANHYDRIDES THEREOF, THEN REACTING THE RESULTING PRODUCT WITH ABOUT 0.1 TO BOUT 1 MOLE PER MOLE OF AVAILABLE CARBOXYL GROUPS OF AN ORGANIC COMPOUND CONTAINING AT LEAST TWO FUNCTIONAL GROUPS ONE OF WHICH IS SELECTED FROM THE GROUP CONSISTING OF PRIMARY AND SECONDARY AMINES AND THE OTHER IS A HYDROXYL GROUP, AND FINALLY TREATING THE RESULTING PRODUCT WITH AN ACID COMPOUND CHOSEN FROM THE GROUP CONSISTING OF MONO, DI AND TRICHLOROACETIC ACID, TRIFLUOROACETIC ACID, GLACIAL ACETIC ACID, AND SOLUBLE SULFONIC ACIDS.
Claim 2
Dependent Claim
149 words
A PROCESS FOR IMPROVING THE HARDNESS OF FILMS PREPARED FROM POLYMERIC DRYING OILS WHICH COMPRISES FIRST REACTING THE OIL AT A TEMPERATURE BETWEEN 50 AND 250* C. WITH FROM 0.01% TO AN AMOUNT WHICH WILL CAUSE GELATION OF A REAGENT SELECTED FROM THE GROUP CONSISTING OF MALEIC ACID, FUMARIC ACID, THIOGLYCOLIC ACID, THIOSALICYLIC ACID, MERCAPTOPHTHALIC ACID, ITACONIC ACID, MESACONIC ACID, CITROCONIC ACID, ACRYLIC ACID AND THE ESTERS AND ANHYDRIDES THEREOF, THEN REACTING THE RESULTING PRODUCT WITH ABOUT 0.1 TO BOUT 1 MOLE PER MOLE OF AVAILABLE CARBOXYL GROUPS OF AN ORGANIC COMPOUND CONTAINING AT LEAST TWO FUNCTIONAL GROUPS ONE OF WHICH IS SELECTED FROM THE GROUP CONSISTING OF PRIMARY AND SECONDARY AMINES AND THE OTHER IS A HYDROXYL GROUP, AND FINALLY TREATING THE RESULTING PRODUCT WITH AN ACID COMPOUND CHOSEN FROM THE GROUP CONSISTING OF MONO, DI AND TRICHLOROACETIC ACID, TRIFLUOROACETIC ACID, GLACIAL ACETIC ACID, AND SOLUBLE SULFONIC ACIDS.
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) | 1959-01-30 | 1959-08-01 | 1960-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-01-30 | 1963-08-01 | 1964-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-01-30 | 1967-08-01 | 1968-01-31 | $7700.00 | Window Closed / Lapsed |