US3040000A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyester composition
Assignee: Standard Oil Co
•
Filing: 1959-05-28
•
Granted: 1962-06-19
•
Expires: 1979-05-28
Abstract
No abstract record available.
Inventors
- 👤 James R Stephens
- 👤 Richard E Van Strien
- 👤 Ronald L Broadhead
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:04
CPC Classifications
C; C08; C08G; C08G63/00; C08G63/66; C08G63/02; C08G63/12; C08G63/46; C08G63/47
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
156 words
AN UNSATURATED POLYESTER RESIN PREPARED BY (1) CONDENSING AN ALKYLENE GLYCOL CONTAINING FROM 2 TO 9 CARBON ATOMS AND TRIMETALLITIC ANHYDRIDE IN A MOLAR RATIO OF GLYCOL:ANHYDRIDE CHARGED ON THE ORDER OF 1-1.4:1, IN AN INERT ATMOSPHERE AND WITH CONTINUOUS WITHDRAWAL OF WATER PRODUCED IN SAID REACTION, AT A TEMPERATURE FROM ABOUT 90*C. TO 150*C. FOR A TIME TO SUBSTANTIALLY COMPLETE THE CONDENSATION REACTION AND (2) REACTING THE PRODUCT OF (1) WITH ALLYL ALCOHOL IN A MOLE RATIO TO ANHYDRIDE CHARGED OF AT LEAST 1 AT A TEMPERATURE FROM ABOUT 90*C. TO 150*C. WITH CONTINUOUS WITHDRAWAL OF WATER PRODUCED IN SAID REACTION, FOR A TIME TO PRODUCE A POLYESTER PRODUCT OF THE DESIRED ACID NUMBER FROM 20 TO 140, AND (3) RECOVERING THE POLYESTER RESIN PRODUCT WHICH PRODUCT IS CHARACTERIZED BY THE ABILITY TO FROM A WATER-SOLUBLE RESIN BY REACTION WITH MATERIAL FROM THE CLASS CONSISTING OF AQUEOUS AMMONIA, LOWER MOLECULAR WEIGHT ALIPHATIC AMINES, AND ALKANOLAMINES.
Claim 2
Dependent Claim
156 words
AN UNSATURATED POLYESTER RESIN PREPARED BY (1) CONDENSING AN ALKYLENE GLYCOL CONTAINING FROM 2 TO 9 CARBON ATOMS AND TRIMETALLITIC ANHYDRIDE IN A MOLAR RATIO OF GLYCOL:ANHYDRIDE CHARGED ON THE ORDER OF 1-1.4:1, IN AN INERT ATMOSPHERE AND WITH CONTINUOUS WITHDRAWAL OF WATER PRODUCED IN SAID REACTION, AT A TEMPERATURE FROM ABOUT 90*C. TO 150*C. FOR A TIME TO SUBSTANTIALLY COMPLETE THE CONDENSATION REACTION AND (2) REACTING THE PRODUCT OF (1) WITH ALLYL ALCOHOL IN A MOLE RATIO TO ANHYDRIDE CHARGED OF AT LEAST 1 AT A TEMPERATURE FROM ABOUT 90*C. TO 150*C. WITH CONTINUOUS WITHDRAWAL OF WATER PRODUCED IN SAID REACTION, FOR A TIME TO PRODUCE A POLYESTER PRODUCT OF THE DESIRED ACID NUMBER FROM 20 TO 140, AND (3) RECOVERING THE POLYESTER RESIN PRODUCT WHICH PRODUCT IS CHARACTERIZED BY THE ABILITY TO FROM A WATER-SOLUBLE RESIN BY REACTION WITH MATERIAL FROM THE CLASS CONSISTING OF AQUEOUS AMMONIA, LOWER MOLECULAR WEIGHT ALIPHATIC AMINES, AND ALKANOLAMINES.
References Cited (Backward Citations)
US881823A
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US1921756A
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US2407479A
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US2280242A
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US2418633A
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US2562878A
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US2936297A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-06-18 | 1965-12-18 | 1966-06-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-06-18 | 1969-12-18 | 1970-06-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-06-18 | 1973-12-18 | 1974-06-19 | $7700.00 | Window Closed / Lapsed |