Patent US2517128A successfully refreshed from Google Patents.
US2517128A
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Urea-formaldehyde-oxazolidine co-reaction resin
Assignee: Rohm and Haas Co
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Filing: 1949-05-03
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Granted: 1950-08-01
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Expires: 1969-05-03
Abstract
No abstract record available.
Inventors
- 👤 Vincent C Meunier
- 👤 Claire M Cox
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 17:43
CPC Classifications
C; C08; C08G; C08G12/00; C08G12/02; C08G12/26; C08G12/34; C08G12/36
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
84 words
AS A NEW COMPOSITON OF MATTER, A WATERSOLUBLE, THERMOSETTING RESINOUS PRODUCT HAVING A VISCOSITY OF AT LEAST 0.5 POISE WHEN MEASURED AS A 50% AQUEOUS SOLUTION AT 25*C. AND OBTAINED BY REACTING IN AQUEOUS SOLUTIN AT A TEMPERATURE FROM 40*C. TO THE BOILING POINT OF SAID SOLUTION AND AT A PH FROM 1. TO 10 AS THE ESSENTIAL REACTANTS UREA, FORMALDEHYDE AND OXAZOLIDINE IN THE RATIO OF TWO TO THREE MOLES OF FORMALDEHYDE AND 0.02 TO 0.5 MOLE OF OXAZOLIDINE PER MOLE OF UREA.
Claim 2
Dependent Claim
84 words
AS A NEW COMPOSITON OF MATTER, A WATERSOLUBLE, THERMOSETTING RESINOUS PRODUCT HAVING A VISCOSITY OF AT LEAST 0.5 POISE WHEN MEASURED AS A 50% AQUEOUS SOLUTION AT 25*C. AND OBTAINED BY REACTING IN AQUEOUS SOLUTIN AT A TEMPERATURE FROM 40*C. TO THE BOILING POINT OF SAID SOLUTION AND AT A PH FROM 1. TO 10 AS THE ESSENTIAL REACTANTS UREA, FORMALDEHYDE AND OXAZOLIDINE IN THE RATIO OF TWO TO THREE MOLES OF FORMALDEHYDE AND 0.02 TO 0.5 MOLE OF OXAZOLIDINE PER MOLE OF UREA.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-07-31 | 1954-01-30 | 1954-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-07-31 | 1958-01-30 | 1958-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-07-31 | 1962-01-30 | 1962-08-01 | $7700.00 | Window Closed / Lapsed |