Patent US2715619A successfully refreshed from Google Patents.
US2715619A
Expired / Lapsed
US
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Process for manufacturing alkylated
Assignee: —
•
Filing: —
•
Granted: 1955-08-16
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Expires: 1972-08-16
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 15:39
CPC Classifications
C; C08; C08G; C08G2/00; C08G2/06; C07; C07D; C07D251/00; C07D251/02; C07D251/12; C07D251/26; C07D251/40; C07D251/54; C08G12/00; C08G12/02; C08G12/26; C08G12/30; C08G12/32
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
158 words
A PROCESS FOR PREPARING WATER-SOLUBLE ALKYLATED METHYOL MELAMINE CONDENSATION PRODUCTS COMPRISING REACTING MELAMINE AND FORMALDEHYDE IN A MIXTURE OF WATER AND AN ALIPHATIC ALCOHOL SELECTED FROM THE GROUP CONSISTING OF METHANOL AND ETHANOL, AT A TMEPERATURE BETWEEN 50* C. AND REFLUX AT A PH BETWEEN 7 AND 12, WHEREIN THE MOL RATIO OF SAID FREE ALCOHOL TO FREE WATER IS BETWEEN ABOUT 5:1 AND 0.5:1, RESPECTIVELY, THE MOL RATIOS OF SAID FREE ALCOHOL TO FORMALDEHYDE IS BETWEEN ABOUT 0.4:1 TO 5:1, RESPECTIVELY, THE MOL RATIO OF MELAMINE TO FORMALDEHYDE IS WITHIN THE RANGE OF ABOUT 1:1.5 TO 1:6, RESPECTIVELY, THEREAFTER ADDING THERETO ADDITIONAL ALIPHATIC ALCOHOL OF THE CLASS SELECTED TO THE SPHERE OF REACTION IN AN AMOUNT SUFFICIENT TO BRING THE MOL RATIO OF THE TOTAL ALCOHOL CHARGED TO THE TOTAL WATER CHARGED TO AT LEAST ABOUT 2:1, RESPECTIVELY, HEAT REACTING SAID MIXTURE SO AS TO EFFECT SUBSTANTIALLY COMPLETE ALKYLATION UNDER ACID CONDITIONS, AND NEUTRALIZING THE RESULTANT SYRUP.
Claim 2
Dependent Claim
158 words
A PROCESS FOR PREPARING WATER-SOLUBLE ALKYLATED METHYOL MELAMINE CONDENSATION PRODUCTS COMPRISING REACTING MELAMINE AND FORMALDEHYDE IN A MIXTURE OF WATER AND AN ALIPHATIC ALCOHOL SELECTED FROM THE GROUP CONSISTING OF METHANOL AND ETHANOL, AT A TMEPERATURE BETWEEN 50* C. AND REFLUX AT A PH BETWEEN 7 AND 12, WHEREIN THE MOL RATIO OF SAID FREE ALCOHOL TO FREE WATER IS BETWEEN ABOUT 5:1 AND 0.5:1, RESPECTIVELY, THE MOL RATIOS OF SAID FREE ALCOHOL TO FORMALDEHYDE IS BETWEEN ABOUT 0.4:1 TO 5:1, RESPECTIVELY, THE MOL RATIO OF MELAMINE TO FORMALDEHYDE IS WITHIN THE RANGE OF ABOUT 1:1.5 TO 1:6, RESPECTIVELY, THEREAFTER ADDING THERETO ADDITIONAL ALIPHATIC ALCOHOL OF THE CLASS SELECTED TO THE SPHERE OF REACTION IN AN AMOUNT SUFFICIENT TO BRING THE MOL RATIO OF THE TOTAL ALCOHOL CHARGED TO THE TOTAL WATER CHARGED TO AT LEAST ABOUT 2:1, RESPECTIVELY, HEAT REACTING SAID MIXTURE SO AS TO EFFECT SUBSTANTIALLY COMPLETE ALKYLATION UNDER ACID CONDITIONS, AND NEUTRALIZING THE RESULTANT SYRUP.
References Cited (Backward Citations)
US2603623A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-08-15 | 1959-02-14 | 1959-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-08-15 | 1963-02-14 | 1963-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-08-15 | 1967-02-14 | 1967-08-16 | $7700.00 | Window Closed / Lapsed |