US2863853A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Epoxy resin compositions
Assignee: CIBA Co Inc
•
Filing: 1957-04-12
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Granted: 1958-12-09
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Expires: 1977-04-12
Abstract
No abstract record available.
Inventors
- 👤 Pschorr Frank Eric
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:27
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/18; C08G59/40; C08G59/42; C08G59/4215
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
55 words
A COMPOSITION OF MATTER COMPRISING (A) A LIQUID POLYGLYCIDYL ETHER OF 4,4''-DIHYDROXYDIPHENYLDIMETHYLMETHANE, (B) METHYL-ENDOMETHYLENE-TETRAHYDROPHTHALIC ANHYDRIDE, AND (C) 2,4,6-TRI(DIMETHYLAMINOMETHYL)PHENOL, WHEREIN THE RATIO OF COMPOUNDS (A), (B) AND (C) IS ABOUT 100:70-90:1-3 PARTS BY WEIGHT, SAID COMPOSITION WHEN SUBJECTED TO HEAT AT AN ELEVATED TEMPERATURE FORMING AN INSOLUBLE AND INFUSIBLE RESIN HAVING A HIGH HEAT DISTORTION TEMPERATURE.
Claim 2
Dependent Claim
55 words
A COMPOSITION OF MATTER COMPRISING (A) A LIQUID POLYGLYCIDYL ETHER OF 4,4''-DIHYDROXYDIPHENYLDIMETHYLMETHANE, (B) METHYL-ENDOMETHYLENE-TETRAHYDROPHTHALIC ANHYDRIDE, AND (C) 2,4,6-TRI(DIMETHYLAMINOMETHYL)PHENOL, WHEREIN THE RATIO OF COMPOUNDS (A), (B) AND (C) IS ABOUT 100:70-90:1-3 PARTS BY WEIGHT, SAID COMPOSITION WHEN SUBJECTED TO HEAT AT AN ELEVATED TEMPERATURE FORMING AN INSOLUBLE AND INFUSIBLE RESIN HAVING A HIGH HEAT DISTORTION TEMPERATURE.
References Cited (Backward Citations)
US2744845A
Cited
US2741607A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-12-08 | 1962-06-09 | 1962-12-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-08 | 1966-06-09 | 1966-12-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-08 | 1970-06-09 | 1970-12-09 | $7700.00 | Window Closed / Lapsed |