US3213063A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyesters from benzophenone tetracarboxylic acid and cured products thereof
Assignee: Standard Oil Co
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Filing: 1962-05-21
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Granted: 1965-10-19
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Expires: 1982-05-21
Abstract
No abstract record available.
Inventors
- 👤 James E Horan
- 👤 Richard E Van Strien
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:12
CPC Classifications
C; C08; C08G; C08G63/00; C08G63/02; C08G63/12; C08G63/123; C08G63/127; C08G63/13; C08G18/00; C08G18/06; C08G18/28; C08G18/40; C08G18/42; C08G18/4205; C08G18/4208; C08G18/4227; C08G63/16; C08G63/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
88 words
AS A BAKING RESIN, A THERMOSET POLYESTER COMPRISING A POLYCONDENSATION REACTION PRODUCT OF (A) BENZOPHENONE TETRACARBOXYLIC ACID, (B) ALKYLENE GLYCOL HAVING FROM 2 TO ABOUT 10 CARBON ATOMS, AND (C) ALKYLENE DICARBOXYLIC ACID HAVING FROM 4 TO ABOUT 10 CARBON ATOMS, WHEREIN THE TETRACARBOXYLIC ACID IS PRESENT IN A MOLE RATIO TO THE DICARBOXYLIC ACID OF FROM ABOUT 0.8 TO ABOUT 1.2 AND AT LEAST ABOUT 40 MOLE PERCENT OF THE GLYCOL IS PRESENT AS NEOPENTYL GLYCOL AND THE REACTION PRODUCT HAS AN ACID NUMBER OF ABOUT 40-70.
Claim 2
Dependent Claim
88 words
AS A BAKING RESIN, A THERMOSET POLYESTER COMPRISING A POLYCONDENSATION REACTION PRODUCT OF (A) BENZOPHENONE TETRACARBOXYLIC ACID, (B) ALKYLENE GLYCOL HAVING FROM 2 TO ABOUT 10 CARBON ATOMS, AND (C) ALKYLENE DICARBOXYLIC ACID HAVING FROM 4 TO ABOUT 10 CARBON ATOMS, WHEREIN THE TETRACARBOXYLIC ACID IS PRESENT IN A MOLE RATIO TO THE DICARBOXYLIC ACID OF FROM ABOUT 0.8 TO ABOUT 1.2 AND AT LEAST ABOUT 40 MOLE PERCENT OF THE GLYCOL IS PRESENT AS NEOPENTYL GLYCOL AND THE REACTION PRODUCT HAS AN ACID NUMBER OF ABOUT 40-70.
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) | 1968-10-18 | 1969-04-19 | 1969-10-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-18 | 1973-04-19 | 1973-10-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-18 | 1977-04-19 | 1977-10-19 | $7700.00 | Window Closed / Lapsed |