Patent US4166933A successfully refreshed from Google Patents.
Patent US3115476A successfully refreshed from Google Patents.
US3115476A
Expired / Lapsed
US
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Process for making polyester resin aqueous suspension and resulting composition
Assignee: General Electric Co
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Filing: 1961-01-23
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Granted: 1963-12-24
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Expires: 1981-01-23
Abstract
No abstract record available.
Inventors
- 👤 Maynard C Agens
- 👤 Kenneth M Kiser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:24
CPC Classifications
C; C08; C08J; C08J3/00; C08J3/02; C08J3/03; C08J3/07; C09; C09D; C09D167/00; C08J2367/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
125 words
THE PROCESS FOR MAKING A POLYESTER RESIN AQUEOUS SUSPENSION WHICH COMPRISES (1) DISSOLVING IN A HEATED OXYGEN CONTAINING SOLVENT SELECTED FROM THE CLASS CONSISTING OF ACETONE, METHYL ETHYL KETONE TETRAHYDROFURFURYL, ALCOHOL, DIETHYL KETONE, AND MIXTURES OF SUCH SOLVENTS, A POLYESTER RESIN COMPRISING THE PRODUCT OF REACTION OF (A) A LOWER DIALKYL ESTER OF A MEMBER SELECTED FROM THE CLASS CONSISTING OF TEREPHTHALIC ACID, ISOPHTHALIC ACID AND MIXTURES OF SAID MEMBERS, (B) ETHYLENE GLYCOL, AND (C) A SATURATED ALIPHATIC POLYHYDRIC ALCOHOL HAVING AT LEAST THREE HYDROXYL GROUPS, (2) COOLING THE SOLUTION TO BELOW 60* C., (3) HEATING THE COOLED MIXTURE OF (2) TO SOLVATION TEMPERATURE, (4) COOLING THE SOLUTION TO A POINT WHERE A CONGEALED PRODUCT IS OBTAINED, AND (5) DISPERSING THE CONGEALED PRODUCT IN WATER.
Claim 2
Dependent Claim
125 words
THE PROCESS FOR MAKING A POLYESTER RESIN AQUEOUS SUSPENSION WHICH COMPRISES (1) DISSOLVING IN A HEATED OXYGEN CONTAINING SOLVENT SELECTED FROM THE CLASS CONSISTING OF ACETONE, METHYL ETHYL KETONE TETRAHYDROFURFURYL, ALCOHOL, DIETHYL KETONE, AND MIXTURES OF SUCH SOLVENTS, A POLYESTER RESIN COMPRISING THE PRODUCT OF REACTION OF (A) A LOWER DIALKYL ESTER OF A MEMBER SELECTED FROM THE CLASS CONSISTING OF TEREPHTHALIC ACID, ISOPHTHALIC ACID AND MIXTURES OF SAID MEMBERS, (B) ETHYLENE GLYCOL, AND (C) A SATURATED ALIPHATIC POLYHYDRIC ALCOHOL HAVING AT LEAST THREE HYDROXYL GROUPS, (2) COOLING THE SOLUTION TO BELOW 60* C., (3) HEATING THE COOLED MIXTURE OF (2) TO SOLVATION TEMPERATURE, (4) COOLING THE SOLUTION TO A POINT WHERE A CONGEALED PRODUCT IS OBTAINED, AND (5) DISPERSING THE CONGEALED PRODUCT IN WATER.
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) | 1966-12-23 | 1967-06-24 | 1967-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-12-23 | 1971-06-24 | 1971-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-12-23 | 1975-06-24 | 1975-12-24 | $7700.00 | Window Closed / Lapsed |