US3278475A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Urea-formaldehyde adhesives modified with a compound selected from the group of ammelide, ammeline and mixtures thereof
Assignee: Honeywell International Inc
•
Filing: 1964-07-29
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Granted: 1966-10-11
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Expires: 1984-07-29
Abstract
No abstract record available.
Inventors
- 👤 Clarence W Spilker
- 👤 George K Cleek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 08:00
CPC Classifications
C; C09; C09J; C09J161/00; C09J161/20; C09J161/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
123 words
A RESIN FORMING COMPOSITION FOR USE IN AN ADHESIVE, SAID RESIN FORMING COMPOSITION COMPRISING AN AQUEOUS NON-RESINOUS UREA-FORMALDEHYDE REACTION PRODUCT SLURRY HAVING 60-90% BY WEIGHT TOTAL SOLIDS, A MOL RATIO BETWEEN 4.0 AND 7.3 MOLS OF FORMALDEHYDE PER MOL OF UREA, AND, A PH OF AT LEAST 7.0; AN AMOUNT OF AN INGREDIENT SELECTED FROM THE GROUP CONSISTING OF AMMELIDE AMMELINE AND MIXTURES THEREOF AND UREA SO THAT THE TOTAL MOL RATIO OF FORMALDEHYDE IN THE COMPOSITION OF EVERY NH2-GROUP PRESENT IN THE COMPOSITION IS IN THE RANGE OF FROM 0.7 TO 1.0 AND THE TOTAL MOL RATIO OF UREA TO SAID INGREDIENT PRESENT IS IN THE RANGE OF FROM 10 TO 30 SAID INGREDIENT BEING AT LEAST PARTIALLY INSOLUBLE IN SAID COMPOSITION.
Claim 2
Dependent Claim
123 words
A RESIN FORMING COMPOSITION FOR USE IN AN ADHESIVE, SAID RESIN FORMING COMPOSITION COMPRISING AN AQUEOUS NON-RESINOUS UREA-FORMALDEHYDE REACTION PRODUCT SLURRY HAVING 60-90% BY WEIGHT TOTAL SOLIDS, A MOL RATIO BETWEEN 4.0 AND 7.3 MOLS OF FORMALDEHYDE PER MOL OF UREA, AND, A PH OF AT LEAST 7.0; AN AMOUNT OF AN INGREDIENT SELECTED FROM THE GROUP CONSISTING OF AMMELIDE AMMELINE AND MIXTURES THEREOF AND UREA SO THAT THE TOTAL MOL RATIO OF FORMALDEHYDE IN THE COMPOSITION OF EVERY NH2-GROUP PRESENT IN THE COMPOSITION IS IN THE RANGE OF FROM 0.7 TO 1.0 AND THE TOTAL MOL RATIO OF UREA TO SAID INGREDIENT PRESENT IS IN THE RANGE OF FROM 10 TO 30 SAID INGREDIENT BEING AT LEAST PARTIALLY INSOLUBLE IN SAID COMPOSITION.
References Cited (Backward Citations)
US2236184A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-10 | 1970-04-11 | 1970-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-10 | 1974-04-11 | 1974-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-10 | 1978-04-11 | 1978-10-11 | $7700.00 | Window Closed / Lapsed |