Patent US2889312A successfully refreshed from Google Patents.
US2889312A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alkyd resins modified with mono-allyl maleate end groups
Assignee: Uniroyal Inc
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Filing: 1955-11-07
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Granted: 1959-06-02
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Expires: 1975-11-07
Abstract
No abstract record available.
Inventors
- 👤 Szayna Antoni
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:29
CPC Classifications
C; C08; C08G; C08G63/00; C08G63/02; C08G63/12; C08G63/52; C08G63/66; C08G63/668; C08G63/676; Y; Y10; Y10S; Y10S525/00; Y10S525/921
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
231 words
A METHOD OF MAKING A MODIFIED LINEAR POLYESTER RESIN WHICH COMPRISES ESTERIFYING, IN THE SUBSTANTIAL ABSENCE OF A STRONGLY ACIDIC CATALYST OF ESTERIFICATION, SUBSTANTIALLY TWO MOLECULAR WEIGHTS OF A MONO-ALLYLIC ESTER OF A BUTENEDIOIC ACID HAVING FROM FOUR TO SIX CARBON ATOMS AND CONTAINING ONLY CARBON, HYDROGEN AND THE CARBOXYLIC OXYGEN ATOMS WITH A REAGENT SELECTED FROM THE GROUP CONSISTING OF (A) ONE MOLECULAR WEIGHT OF A PERFORMED POLYESTER WHICH IS SUBSTANTIALLY ENTIRELY COMPOSED OF LINEAR CHAINS OF UNITS OF A GLYCOL ALTERNATING WITH ORGANIC DICARBOXYLIC ACID UNITS, WHEREIN ENOUGH OF THE ACID UNITS IN THE REAGENT POLYESTER ARE NON-OLEFINIC SO THAT AT LEAST 33 MOL PERCENT OF THE DIBASIC ACID UNITS IN THE SAID MODIFIED POLYESTER ARE NON-OLEFINIC, AND WHEREIN THE REAGENT POLYESTER CHAINS TERMINATE SUBSTANTIALLY ONLY WITH THE ALCOHOLIC HYDROXYL GROUPS, AND (B) A MIXTURE OF AT LEAST ONE MOLECULAR WEIGHTS OF AT LEAST ONE GLYCOL AND OF AT LEAST ONE MOLECULAR WEIGHT OF AT LEAST ONE DICARBOXYLIC ACID, WHEREIN THE AMOUNT OF GLYCOL IS GREATER THAN THE AMOUNT OF DIBASIC ACID BY ABOUT ONE MOLECULAR WEIGHT, AND WHEREIN ENOUGH DIBASIC ACID IS NON-OLEFINIC SO THAT AT LEAST 33 MOL PERCENT OF THE DIBASIC ACID UNITS IN THE SAID MODIFIED LINEAR POLYESTER RESIN ARE NON-OLEFINIC, THE SAID MOESTERIFYING IN THIS LATTER INSTANCE BEING CARRIED OUT UNTIL SUBSTANTIALLY ALL OF THE ALLYLIC ESTER, GLYCOL AND DIBASIC ACID ARE MUTUALLY ESTERIFIED.
Claim 2
Independent Claim
231 words
A METHOD OF MAKING A MODIFIED LINEAR POLYESTER RESIN WHICH COMPRISES ESTERIFYING, IN THE SUBSTANTIAL ABSENCE OF A STRONGLY ACIDIC CATALYST OF ESTERIFICATION, SUBSTANTIALLY TWO MOLECULAR WEIGHTS OF A MONO-ALLYLIC ESTER OF A BUTENEDIOIC ACID HAVING FROM FOUR TO SIX CARBON ATOMS AND CONTAINING ONLY CARBON, HYDROGEN AND THE CARBOXYLIC OXYGEN ATOMS WITH A REAGENT SELECTED FROM THE GROUP CONSISTING OF (A) ONE MOLECULAR WEIGHT OF A PERFORMED POLYESTER WHICH IS SUBSTANTIALLY ENTIRELY COMPOSED OF LINEAR CHAINS OF UNITS OF A GLYCOL ALTERNATING WITH ORGANIC DICARBOXYLIC ACID UNITS, WHEREIN ENOUGH OF THE ACID UNITS IN THE REAGENT POLYESTER ARE NON-OLEFINIC SO THAT AT LEAST 33 MOL PERCENT OF THE DIBASIC ACID UNITS IN THE SAID MODIFIED POLYESTER ARE NON-OLEFINIC, AND WHEREIN THE REAGENT POLYESTER CHAINS TERMINATE SUBSTANTIALLY ONLY WITH THE ALCOHOLIC HYDROXYL GROUPS, AND (B) A MIXTURE OF AT LEAST ONE MOLECULAR WEIGHTS OF AT LEAST ONE GLYCOL AND OF AT LEAST ONE MOLECULAR WEIGHT OF AT LEAST ONE DICARBOXYLIC ACID, WHEREIN THE AMOUNT OF GLYCOL IS GREATER THAN THE AMOUNT OF DIBASIC ACID BY ABOUT ONE MOLECULAR WEIGHT, AND WHEREIN ENOUGH DIBASIC ACID IS NON-OLEFINIC SO THAT AT LEAST 33 MOL PERCENT OF THE DIBASIC ACID UNITS IN THE SAID MODIFIED LINEAR POLYESTER RESIN ARE NON-OLEFINIC, THE SAID MOESTERIFYING IN THIS LATTER INSTANCE BEING CARRIED OUT UNTIL SUBSTANTIALLY ALL OF THE ALLYLIC ESTER, GLYCOL AND DIBASIC ACID ARE MUTUALLY ESTERIFIED.
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) | 1962-06-01 | 1962-12-01 | 1963-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-06-01 | 1966-12-01 | 1967-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-06-01 | 1970-12-01 | 1971-06-02 | $7700.00 | Window Closed / Lapsed |