Patent US2914508A successfully refreshed from Google Patents.
US2914508A
Expired / Lapsed
US
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Aminoplasts
Assignee: Monsanto Chemicals Ltd
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Filing: 1956-09-11
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Granted: 1959-11-24
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Expires: 1976-09-11
Abstract
No abstract record available.
Inventors
- 👤 Jr Byron L Williams
- 👤 Harry M Culbertson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:57
CPC Classifications
C; C08; C08G; C08G12/00; C08G12/02; C08G12/40; C08G12/42; C08G12/424; C08G12/425; C08G12/427; C08G12/26; C08G12/30; C08G12/32
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
84 words
A PROCESS WHICH COMPRISES REFLUXING UNDER ALKALINE CONDITIONS A MIXTURE CONTAINING 1 MOLAR PROPORTION OF A CYCLOHEXYLMELAMINE OF THE GROUP CONSISTING OF STYRENE, CYCLOHEXYLMELAMINE AND N,N-DICYCLOHEXYLMELAMINE AND 3-7 MOLAR PROPORTIONS OF AN ALDEHYDE OF THE GROUP CONSISTING OF AN ALKANOL CONTAINING 1-8 CARBON ATOMS, BENZALDEHYDE, FURFURAL, ACROLEIN, METHACROLEIN, CROTONALDEHYDE, AND CINNAMALDEHYDE, REACTING THE PRODUCT UNDER ACID CONDITIONS AT TEMPERATURES UP TO AND INCLUDING REFLUX TEMPERATURE WITH 3-10 MOLAR PROPORTIONS OF A MONOHYDRIC ALKANOL CONTAINING 1-6 CARBON ATOMS, AND FINALLY REMOVING EXCESS ALDEHYDE AND ALCOHOL.
Claim 2
Dependent Claim
84 words
A PROCESS WHICH COMPRISES REFLUXING UNDER ALKALINE CONDITIONS A MIXTURE CONTAINING 1 MOLAR PROPORTION OF A CYCLOHEXYLMELAMINE OF THE GROUP CONSISTING OF STYRENE, CYCLOHEXYLMELAMINE AND N,N-DICYCLOHEXYLMELAMINE AND 3-7 MOLAR PROPORTIONS OF AN ALDEHYDE OF THE GROUP CONSISTING OF AN ALKANOL CONTAINING 1-8 CARBON ATOMS, BENZALDEHYDE, FURFURAL, ACROLEIN, METHACROLEIN, CROTONALDEHYDE, AND CINNAMALDEHYDE, REACTING THE PRODUCT UNDER ACID CONDITIONS AT TEMPERATURES UP TO AND INCLUDING REFLUX TEMPERATURE WITH 3-10 MOLAR PROPORTIONS OF A MONOHYDRIC ALKANOL CONTAINING 1-6 CARBON ATOMS, AND FINALLY REMOVING EXCESS ALDEHYDE AND ALCOHOL.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-11-23 | 1963-05-25 | 1963-11-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-11-23 | 1967-05-25 | 1967-11-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-11-23 | 1971-05-25 | 1971-11-24 | $7700.00 | Window Closed / Lapsed |