Patent US3018265A successfully refreshed from Google Patents.
US3018265A
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Method of forming a resin from a nitrogen compound, formaldehyde, an alcohol and an usaturated monocarboxylic acid, and product thereof
Assignee: Roehm GmbH Darmstadt
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Filing: 1956-12-17
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Granted: 1962-01-23
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Expires: 1976-12-17
Abstract
No abstract record available.
Inventors
- 👤 Tessmar Klaus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:09
CPC Classifications
C; C08; C08G; C08G63/00; C08G63/68; C08G63/685; C08G12/00; C08G12/02; C08G12/04; C08G12/10; C08G12/40; C08G12/44; Y; Y10; Y10S; Y10S525/00; Y10S525/923
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
101 words
THE METHOD WHICH COMPRISES CONDENSING AT LEAST ONE NITROGEN COMPOUND SELECTED FROM THE GROUP CONSISTING OF UREA, MELAMINE, THIOUREA, BIURET, GUANIDINE, CYANAMIDE, DICYANAMIDE, HYDANTOIN, MELAM, MELEM, AMMELINE, AND AMMELIDE WITH FROM 1 TO 3 MOLS OF FORMALDEHYDE PER EACH AMIDO AND AMIDINO GROUP IN SAID COMPOUND IN THE PRESENCE OF AN ALCOHOL HAVING UP TO 5 CARBON ATOMS AND SELECTED FROM THE GROUP CONSISTING OF LOWER ALKYL PRIMARY AND SECONDARY MONOHYDRIC ALCOHOLS, LOWER ALKYLENE GLYCOLS, AND LOWER ALKOXY ALKANOLS, AND BETWEEN 2 AND 20 PERCENT BY WEIGHT, BASED ON THE WEIGHT OF CONDENSATION PRODUCT, OF AN UNSATURATED, POLYMERIZABLE ALIPHATIC MONOCARBOXYLIC ACID.
Claim 2
Independent Claim
101 words
THE METHOD WHICH COMPRISES CONDENSING AT LEAST ONE NITROGEN COMPOUND SELECTED FROM THE GROUP CONSISTING OF UREA, MELAMINE, THIOUREA, BIURET, GUANIDINE, CYANAMIDE, DICYANAMIDE, HYDANTOIN, MELAM, MELEM, AMMELINE, AND AMMELIDE WITH FROM 1 TO 3 MOLS OF FORMALDEHYDE PER EACH AMIDO AND AMIDINO GROUP IN SAID COMPOUND IN THE PRESENCE OF AN ALCOHOL HAVING UP TO 5 CARBON ATOMS AND SELECTED FROM THE GROUP CONSISTING OF LOWER ALKYL PRIMARY AND SECONDARY MONOHYDRIC ALCOHOLS, LOWER ALKYLENE GLYCOLS, AND LOWER ALKOXY ALKANOLS, AND BETWEEN 2 AND 20 PERCENT BY WEIGHT, BASED ON THE WEIGHT OF CONDENSATION PRODUCT, OF AN UNSATURATED, POLYMERIZABLE ALIPHATIC MONOCARBOXYLIC ACID.
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) | 1965-01-22 | 1965-07-24 | 1966-01-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-01-22 | 1969-07-24 | 1970-01-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-01-22 | 1973-07-24 | 1974-01-23 | $7700.00 | Window Closed / Lapsed |