US3390131A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Copolyester of tris-hydroxyalkyl isocyanurate
Assignee: Mobil Oil AS
•
Filing: 1963-10-04
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Granted: 1968-06-25
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Expires: 1983-10-04
Abstract
No abstract record available.
Inventors
- 👤 Gerald P Roeser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:20
CPC Classifications
C; C08; C08G; C08G63/00; C08G63/78; C08G63/82
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
104 words
AN ORGANIC SOLVENT SOLUBLE THERMALLY CONVERTIBLE COPOLYESTER POSSESSING IMPROVED ELEVATED TERMPERATURE EXPOSURE RESISTANCE AND CONSISTING ESSENTIALLY OF THE COPOLYESTERIFICATION REACTION PRODUCT OF: (A) AROMATIC DICARBOXYLIC ACID CONSISTING ESSENTIALLY OF TEREPHTHALIC ACID; (B) ALIPHATIC DIOL CONTAINING FROM 2-10 CARBON ATOMS; AND (C) TRIS-HYDROXYALKYL ISOCYANURATE; THE EQUIVALENT PROPORTIONS OF SAID COMPONENTS (A), (B) AND (C) BEING DEFINED BY THE CLOSED AREA E-F-C-D-E IN THE ACCOMPANYING TRIANGULATION, SAID COPOLYESTER HAVING A SPECIFIC VISCOSITY IN THE RANGE OF FROM 0.15 TO 0.30, VISCOSITY BEING MEASURED AT 77*F. IN A 1 GRAM PER DECILITER SOLUTION IN A SOLVENT MIXTURE OF 60 PARTS OF PHENOL TO 40 PARTS OF TETRACHLORETHANE.
Claim 2
Dependent Claim
104 words
AN ORGANIC SOLVENT SOLUBLE THERMALLY CONVERTIBLE COPOLYESTER POSSESSING IMPROVED ELEVATED TERMPERATURE EXPOSURE RESISTANCE AND CONSISTING ESSENTIALLY OF THE COPOLYESTERIFICATION REACTION PRODUCT OF: (A) AROMATIC DICARBOXYLIC ACID CONSISTING ESSENTIALLY OF TEREPHTHALIC ACID; (B) ALIPHATIC DIOL CONTAINING FROM 2-10 CARBON ATOMS; AND (C) TRIS-HYDROXYALKYL ISOCYANURATE; THE EQUIVALENT PROPORTIONS OF SAID COMPONENTS (A), (B) AND (C) BEING DEFINED BY THE CLOSED AREA E-F-C-D-E IN THE ACCOMPANYING TRIANGULATION, SAID COPOLYESTER HAVING A SPECIFIC VISCOSITY IN THE RANGE OF FROM 0.15 TO 0.30, VISCOSITY BEING MEASURED AT 77*F. IN A 1 GRAM PER DECILITER SOLUTION IN A SOLVENT MIXTURE OF 60 PARTS OF PHENOL TO 40 PARTS OF TETRACHLORETHANE.
References Cited (Backward Citations)
US3205200A
Cited
US3211585A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-06-25 | 1971-12-25 | 1972-06-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-06-25 | 1975-12-25 | 1976-06-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-06-25 | 1979-12-25 | 1980-06-25 | $7700.00 | Window Closed / Lapsed |