Patent US1274669A successfully refreshed from Google Patents.
US3223666A
Expired / Lapsed
US
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Polyester using benzene tribasic acid
Assignee: Standard Oil Co
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Filing: 1962-09-13
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Granted: 1965-12-14
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Expires: 1982-09-13
Abstract
No abstract record available.
Inventors
- 👤 Benjamin A Bolton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 07:37
CPC Classifications
C; C08; C08G; C08G63/00; C08G63/02; C08G63/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
94 words
A RESIN CONSISTING ESSENTIALLY OF THE POLYESTER CONDENSATION REACTION PRODUCT OF (A) A BENZENE TRIBASIC ACIDIC MEMBER SELECTED FROM THE GROUP CONSISTING OF TRIMELLITIC ACID, TRIMELLITIC ANHYDRIDE, TRIMESIC ACID, HEMIMELLITIC ACID AND HEMIMELLITIC ANHYDRIDE, (B) ALIPHATIC DICARBOXYLIC ACIDS CONTAINING FROM 4 TO ABOUT 60 CARBON ATOMS AND (C) ALIPHATIC POLYOLS, WHEREIN THE MOLE RATIO ACIDIC MEMBER:DICARBOXYLIC ACID:POLYOL IS BETWEEN ABOUT 1:1:2 AND ABOUT 10:1:25, WHICH RESIN IS CAHRACTERIZED BY AN ACID NUMBER OF ABOUT 20-100, BY THE FORMATION OF A THERMOSET MATERIAL ON BAKING AT ABOUT 400*F. AND BY SOLUBILITY IN OXYGENATED ORGANIC SOLVENTS.
Claim 2
Dependent Claim
94 words
A RESIN CONSISTING ESSENTIALLY OF THE POLYESTER CONDENSATION REACTION PRODUCT OF (A) A BENZENE TRIBASIC ACIDIC MEMBER SELECTED FROM THE GROUP CONSISTING OF TRIMELLITIC ACID, TRIMELLITIC ANHYDRIDE, TRIMESIC ACID, HEMIMELLITIC ACID AND HEMIMELLITIC ANHYDRIDE, (B) ALIPHATIC DICARBOXYLIC ACIDS CONTAINING FROM 4 TO ABOUT 60 CARBON ATOMS AND (C) ALIPHATIC POLYOLS, WHEREIN THE MOLE RATIO ACIDIC MEMBER:DICARBOXYLIC ACID:POLYOL IS BETWEEN ABOUT 1:1:2 AND ABOUT 10:1:25, WHICH RESIN IS CAHRACTERIZED BY AN ACID NUMBER OF ABOUT 20-100, BY THE FORMATION OF A THERMOSET MATERIAL ON BAKING AT ABOUT 400*F. AND BY SOLUBILITY IN OXYGENATED ORGANIC SOLVENTS.
References Cited (Backward Citations)
US2562878A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-12-13 | 1969-06-14 | 1969-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-13 | 1973-06-14 | 1973-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-13 | 1977-06-14 | 1977-12-14 | $7700.00 | Window Closed / Lapsed |