US2528934A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adhesive composition containing a fluidized glycidyl ether and an amphoteric oxide
Assignee: Shell Development Co
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Filing: 1949-04-29
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Granted: 1950-11-07
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Expires: 1969-04-29
Abstract
No abstract record available.
Inventors
- 👤 Quentin T Wiles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:37
CPC Classifications
C; C08; C08K; C08K3/00; C08K3/18; C08K3/20; C08K3/22; C08G; C08G59/00; C08G59/14; C08G59/1433; C08G59/1438; C08G59/145; C08G59/18; C08G59/20; C08G59/22; C08G59/226; C08G59/32; C08G59/38; C09; C09J; C09J163/00; C08L; C08L2666/00; C08L2666/54; Y; Y10; Y10S; Y10S273/00; Y10S273/03
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
104 words
A COMPOSITION ESSENTIALLY COMPRISING GLYCIDYL ETHER OF A DIHYDRIC PHENOL HAVING A 1,2EPOXY EQUIVALENCY GREATER THAN 1.0, AND A LIQUID EPOXY COMPOUND HAVING A BOILING POINT OF AT LEAST 100*C. WHEREIN THE EPOXY GROUP IS A THREEMEMBERED RING CONTAINING TWO VICINAL SATURATED CARBON ATOMS, IN ADMIXTURE WITH AN ADDED 25% TO 200% OF COMMINUTED SUBSTANTIALLY WATER-INSOLUBLE AMPHOTERIC OXIDE, THE PERCENTAGE OF ADDED AMPHOTERIC OXIDE BEING BASED UPON THE TOTAL AMOUNT BY WEIGHT OF THE MIXTURE OF ONLY THE TWO SAID ORGANIC CONSTITUTENTS, WHICH MIXTURE CONTAINS SUCH PROPORTION OF SAID LIQUID EPOXY COMPOUND THAT IT HAS A VISCOSITY OF 3 TO 100 POISES AT 25*C.
Claim 2
Dependent Claim
104 words
A COMPOSITION ESSENTIALLY COMPRISING GLYCIDYL ETHER OF A DIHYDRIC PHENOL HAVING A 1,2EPOXY EQUIVALENCY GREATER THAN 1.0, AND A LIQUID EPOXY COMPOUND HAVING A BOILING POINT OF AT LEAST 100*C. WHEREIN THE EPOXY GROUP IS A THREEMEMBERED RING CONTAINING TWO VICINAL SATURATED CARBON ATOMS, IN ADMIXTURE WITH AN ADDED 25% TO 200% OF COMMINUTED SUBSTANTIALLY WATER-INSOLUBLE AMPHOTERIC OXIDE, THE PERCENTAGE OF ADDED AMPHOTERIC OXIDE BEING BASED UPON THE TOTAL AMOUNT BY WEIGHT OF THE MIXTURE OF ONLY THE TWO SAID ORGANIC CONSTITUTENTS, WHICH MIXTURE CONTAINS SUCH PROPORTION OF SAID LIQUID EPOXY COMPOUND THAT IT HAS A VISCOSITY OF 3 TO 100 POISES AT 25*C.
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) | 1953-11-06 | 1954-05-08 | 1954-11-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-11-06 | 1958-05-08 | 1958-11-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-11-06 | 1962-05-08 | 1962-11-07 | $7700.00 | Window Closed / Lapsed |