US2797206A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stable melamine-urea resin syrup
Assignee: Wyeth Holdings LLC
•
Filing: 1952-12-02
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Granted: 1957-06-25
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Expires: 1972-12-02
Abstract
No abstract record available.
Inventors
- 👤 Suen Tzeng Jiueq
- 👤 Sewell T Moore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:29
CPC Classifications
C; C08; C08G; C08G12/00; C08G12/02; C08G12/40; C08G12/42; C08G12/428; C08G12/26; C08G12/34; C08G12/36; C08G12/38
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
109 words
THE WATER-DILUTABLE RESINOUS PRODUCT OF THE CONDENSATION OF URE,MELAMINE, FORMALDEHYDE AND METHANOL IN THE PRESENCE OF WATER, THE MOLAR RATIO OF SAID UREA TO SAID MELAMINE BEING BETWEEN ABOUT 1.0 AND 2.0; THE MOLAR RATIO OF SAID MELAMINE BEING BETWEEN ABOUT 0.9 AND 1.3; UREA AND SAID MELAMINE BEING BETWEEN ABOUT 0.9 AND 1.3; THE MOLAR RATIO OF SAID METHANOL TO SAID FORMALDEHYDE BEING BETWEEN ABOUT 0.4 AND 1.0; AND THE MOLAR RATIO OF SAID WATER TO SAID METHANOL BEING BETWEEN ABOUT 0.6 AND 1.2, SAID PRODUCTD BEING A STABLE "O*C. HYDROPHOBE SYRUP" OF PUMPABLE VISCOSITY HAVING A TEMPERATURE BELOW 40*C. AND A PH BETWEEN ABOUT 7.0 AND 10.0.
Claim 2
Dependent Claim
109 words
THE WATER-DILUTABLE RESINOUS PRODUCT OF THE CONDENSATION OF URE,MELAMINE, FORMALDEHYDE AND METHANOL IN THE PRESENCE OF WATER, THE MOLAR RATIO OF SAID UREA TO SAID MELAMINE BEING BETWEEN ABOUT 1.0 AND 2.0; THE MOLAR RATIO OF SAID MELAMINE BEING BETWEEN ABOUT 0.9 AND 1.3; UREA AND SAID MELAMINE BEING BETWEEN ABOUT 0.9 AND 1.3; THE MOLAR RATIO OF SAID METHANOL TO SAID FORMALDEHYDE BEING BETWEEN ABOUT 0.4 AND 1.0; AND THE MOLAR RATIO OF SAID WATER TO SAID METHANOL BEING BETWEEN ABOUT 0.6 AND 1.2, SAID PRODUCTD BEING A STABLE "O*C. HYDROPHOBE SYRUP" OF PUMPABLE VISCOSITY HAVING A TEMPERATURE BELOW 40*C. AND A PH BETWEEN ABOUT 7.0 AND 10.0.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-06-24 | 1960-12-24 | 1961-06-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-06-24 | 1964-12-24 | 1965-06-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-06-24 | 1968-12-24 | 1969-06-25 | $7700.00 | Window Closed / Lapsed |