US3382210A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lactone modified epoxide resins
Assignee: Celanese Corp
•
Filing: 1962-10-26
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Granted: 1968-05-07
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Expires: 1982-10-26
Abstract
No abstract record available.
Inventors
- 👤 John W Wyart
- 👤 Joseph A Vona
- 👤 Schrage Albert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:25
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/18; C08G59/40; C08G59/62; C08G59/625
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
69 words
A ROOM TEMPERATURE-CURABLE EPOXY RESINOUS COMPOSITION COMPRISING: (A) AN EPOXIDE RESIN CONTAINING TERMINAL UNREACTED EPOXY GROUPS, (B) FROM ABOUT 0.2 TO 0.8 EQUIVALENT, PER EPOXY EQUIVALENT OF SAID (A), OF AT LEAST ONE MONOLACTONE HAVING FROM 3 TO 6 CARBON ATOMS IN THE LACTONE RING, AND (C) A CATALYTIC AMOUNT OF A CATALYST SELECTED FROM THE GROUP CONSISTING OF A BORON TRIFLUORIDE-ETHERATE COMPLEX AND A BORON TRIFLUORIDE-ACETIC ACID COMPLEX.
Claim 2
Dependent Claim
69 words
A ROOM TEMPERATURE-CURABLE EPOXY RESINOUS COMPOSITION COMPRISING: (A) AN EPOXIDE RESIN CONTAINING TERMINAL UNREACTED EPOXY GROUPS, (B) FROM ABOUT 0.2 TO 0.8 EQUIVALENT, PER EPOXY EQUIVALENT OF SAID (A), OF AT LEAST ONE MONOLACTONE HAVING FROM 3 TO 6 CARBON ATOMS IN THE LACTONE RING, AND (C) A CATALYTIC AMOUNT OF A CATALYST SELECTED FROM THE GROUP CONSISTING OF A BORON TRIFLUORIDE-ETHERATE COMPLEX AND A BORON TRIFLUORIDE-ACETIC ACID COMPLEX.
References Cited (Backward Citations)
US2455731A
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US2888403A
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US2893973A
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US3222312A
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US3294743A
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US3203920A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-05-07 | 1971-11-06 | 1972-05-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-05-07 | 1975-11-06 | 1976-05-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-05-07 | 1979-11-06 | 1980-05-07 | $7700.00 | Window Closed / Lapsed |