US2774748A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composition containing glycidyl polyether of a polyhydric phenol and a methylol substituted 2-alkenyloxybenzene
Assignee: Shell Development Co
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Filing: 1952-04-14
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Granted: 1956-12-18
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Expires: 1972-04-14
Abstract
No abstract record available.
Inventors
- 👤 Harry W Howard
- 👤 Clifford V Wittenwyler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 00:06
CPC Classifications
C; C09; C09D; C09D163/00; C08; C08G; C08G59/00; C08G59/14; C08G59/1433; C08G59/1438; C08G59/1444; C08G59/18; C08G59/40; C08G59/62; C08L; C08L63/00
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
91 words
A COMPOSITION COMPRISING A MXITURE OF (1) AN EPOXIDE RESIN, WHICH IS A CONDENSATE OF EPICHLOROHYDRIN AND A DIHYDRIC PHENOL, (2) AN ALKENYLOXYBENZENE FROM THE GROUP CONSISTING OF ALLYLOXYBENZENE AND METHALLYLOXYBENZENE, SAID ALKENYLOXYBENZENE CONTAINING 3 METHYLOL GROUPS LINKED SINGLY AT THE 2, 4 AND 6 POSITIONS ON THE BENZENE RING, IN PROPORTIONS OF 1 TO 9 PARTS OF (1) TO 9 TO 1 PARTS BY WEIGHT OF (2), AND (3) PHOSPHORIC ACID IN AN AMOUNT OF FROM 0.2% TO 5% BY WEIGHT BASED ON THE TOTAL COMPOSITION AS A CURING CATALYST.
References Cited (Backward Citations)
US2579329A
Cited
US2606935A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-12-18 | 1960-06-18 | 1960-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-12-18 | 1964-06-18 | 1964-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-12-18 | 1968-06-18 | 1968-12-18 | $7700.00 | Window Closed / Lapsed |