US3218370A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat hardenable compositions of tri- or tetra-glycidyl ethers and phenolic resins
Assignee: Union Carbide Corp
•
Filing: 1960-06-30
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Granted: 1965-11-16
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Expires: 1980-06-30
Abstract
No abstract record available.
Inventors
- 👤 John S Fry
- 👤 Jr John L Welch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 12:30
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/18; C08G59/20; C08G59/32; C08G59/3218; C08L; C08L63/00; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2982; Y10T428/2991; Y10T428/2993; Y10T428/2996; Y10T428/31504; Y10T428/31511; Y10T428/31515; Y10T428/31518; Y10T428/31551; Y10T428/31627; Y10T428/31652
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
66 words
A HEAT-HARDENABLE COMPOSITION HAVING A FUNCTIONALITY OF AT LEAST 3 COMPRISING A POLYGLYCIDYL ETHER OF A POLYPHENYLOL HAVING FROM THREE TO FOUR PHENYLOL GROUPS INCLUSIVE WHICH ARE CONNECTED THROUGH A COMMON ALIPHATIC, HYDROCARBON GROUP, AND HAVING A FUNCTIONALITY OF FROM THREE TO FOUR INCLUSIVE, AND A REACTIVE PHENOLFORMALDEHYDE CONDENSATE HAVING AN AVERAGE PHENOLIC HYDROXYL FUNCTIONALITY OF AT LEAST THREE, SAID MATERIALS BEING PRESENT IN STOICHIOMETRIC AMOUNTS.
Claim 2
Dependent Claim
66 words
A HEAT-HARDENABLE COMPOSITION HAVING A FUNCTIONALITY OF AT LEAST 3 COMPRISING A POLYGLYCIDYL ETHER OF A POLYPHENYLOL HAVING FROM THREE TO FOUR PHENYLOL GROUPS INCLUSIVE WHICH ARE CONNECTED THROUGH A COMMON ALIPHATIC, HYDROCARBON GROUP, AND HAVING A FUNCTIONALITY OF FROM THREE TO FOUR INCLUSIVE, AND A REACTIVE PHENOLFORMALDEHYDE CONDENSATE HAVING AN AVERAGE PHENOLIC HYDROXYL FUNCTIONALITY OF AT LEAST THREE, SAID MATERIALS BEING PRESENT IN STOICHIOMETRIC AMOUNTS.
References Cited (Backward Citations)
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Cited
US2885385A
Cited
US2857362A
Cited
US2801989A
Cited
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Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-15 | 1969-05-17 | 1969-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-15 | 1973-05-17 | 1973-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-15 | 1977-05-17 | 1977-11-16 | $7700.00 | Window Closed / Lapsed |