US3033822A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Linear polyesters of 1, 4-cyclohexane-dimethanol and hydroxycarboxylic acids
Assignee: Eastman Kodak Co
•
Filing: 1959-06-29
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Granted: 1962-05-08
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Expires: 1979-06-29
Abstract
No abstract record available.
Inventors
- 👤 Charles J Kibler
- 👤 James G Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:01
CPC Classifications
C; C08; C08G; C08G63/00; C08G63/02; C08G63/60; C08G63/06; C08G63/12; C08G63/16; C08G63/18; C08G63/199; C08G69/00; C08G69/44
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
122 words
A HIGHLY POLYMERIC LINEAR POLYESTER OF (A) A DICARBOXLIC ACID, (B) A BIFUNCTIONAL DIHYDROXY COMPONENT AND (X) A MONO-HYDROXY-MONO-CARBOXYLIC ACID, THE RELATIVE PROPORTIONS OF (A), (B) AND (X) CONSTITUENTS BEING SUCH THAT CONSTITUENTS (A) AND (B) ARE PRESENT IN EQUIMOLECULAR AMOUNTS, CONSTITUENT (X) IS FROM ABOUT 10 TO 60 MOLE PERCENT OF CONSTITUENT (A) AND IN WHICH AT LEAST 50 MOLE PERCENT OF SAID CONSTITUENT (B) CONSISTS OF AT LEAST ONE MEMBER SELECTED FROM THE GROUP CONSISTING OF THE CIS AND TRANS ISOMERS OF 1,4-CYCLOHEXANEIMETHANOL, WHICH POLYESTER MELTS AT ABOVE 100*C. AND BELOW ABOUT 330*C., HAS AN INHERENT VISOCITY OF AT LEAST 0.4 AS MEASURED IN A MIXTURE OF 40% TETRACHLORETHANE PLUS 60% PHENOL AND IS CAPABLE OF BEING FORMED INTO FIBERS.
Claim 2
Dependent Claim
122 words
A HIGHLY POLYMERIC LINEAR POLYESTER OF (A) A DICARBOXLIC ACID, (B) A BIFUNCTIONAL DIHYDROXY COMPONENT AND (X) A MONO-HYDROXY-MONO-CARBOXYLIC ACID, THE RELATIVE PROPORTIONS OF (A), (B) AND (X) CONSTITUENTS BEING SUCH THAT CONSTITUENTS (A) AND (B) ARE PRESENT IN EQUIMOLECULAR AMOUNTS, CONSTITUENT (X) IS FROM ABOUT 10 TO 60 MOLE PERCENT OF CONSTITUENT (A) AND IN WHICH AT LEAST 50 MOLE PERCENT OF SAID CONSTITUENT (B) CONSISTS OF AT LEAST ONE MEMBER SELECTED FROM THE GROUP CONSISTING OF THE CIS AND TRANS ISOMERS OF 1,4-CYCLOHEXANEIMETHANOL, WHICH POLYESTER MELTS AT ABOVE 100*C. AND BELOW ABOUT 330*C., HAS AN INHERENT VISOCITY OF AT LEAST 0.4 AS MEASURED IN A MIXTURE OF 40% TETRACHLORETHANE PLUS 60% PHENOL AND IS CAPABLE OF BEING FORMED INTO FIBERS.
References Cited (Backward Citations)
US2901466A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-05-07 | 1965-11-06 | 1966-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-05-07 | 1969-11-06 | 1970-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-05-07 | 1973-11-06 | 1974-05-08 | $7700.00 | Window Closed / Lapsed |