Patent US2820032A successfully refreshed from Google Patents.
US2820032A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of triazines
Assignee: Individual
•
Filing: 1954-04-21
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Granted: 1958-01-14
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Expires: 1974-04-21
Abstract
No abstract record available.
Inventors
- 👤 Eugene F Hill
- 👤 Clinton Ernest
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:12
CPC Classifications
C; C07; C07D; C07D251/00; C07D251/02; C07D251/12; C07D251/26; C07D251/40; C07D251/48; C07D251/50; C07D251/42; C07D251/44
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
115 words
IN A PROCESS FOR THE PREPARTION OF A MATERIAL SELECTED FROM THE GROUP CONSISTING OF 2-CHLORO-4,6-ARYLAMINO-S-TRIAZINE AND 2,4-DICHLORO-6-ARYLAMINO-S-TRIAZINE, COMPRISING REACTING CYANURIC CHLORIDE WITH A SUBSTANTIALLY WATER-INSOLUBLE AROMATIC AMINE WHEREIN SAID AROMATIC PORTION IS SELECTED FROM THE GROUP CONSISTING OF PHENYL, NAPHTHYL, ALKYL PHENYL, HALO PHENYL AND ALKYL HALO PHENYL GROUPS AND HAVING AT LEAST ONE HYDROGEN ATTACHED TO THE AMINO NITROGEN, THE IMPROVEMENT WHICH COMPRISES INTIMATELY DISPERSING BOTH REACTANTS IN SUBSTABTIALLY AQUEOUS REACTION MEDIUM CONTAINING AS A SURFACE ACTIVE AGENT A METAL SALT OF LIGNIN SULFONIC ACID IN AN AMOUNT BETWEEN ABOUT 0.2 AND 2.0 WEIGHT PERCENT OF THE TOTAL REACTION MIXTURE AND CONDUCTING THE REACTION FOR A PERIOD OF 30 MINUTES OF 2 HOURS.
Claim 2
Dependent Claim
115 words
IN A PROCESS FOR THE PREPARTION OF A MATERIAL SELECTED FROM THE GROUP CONSISTING OF 2-CHLORO-4,6-ARYLAMINO-S-TRIAZINE AND 2,4-DICHLORO-6-ARYLAMINO-S-TRIAZINE, COMPRISING REACTING CYANURIC CHLORIDE WITH A SUBSTANTIALLY WATER-INSOLUBLE AROMATIC AMINE WHEREIN SAID AROMATIC PORTION IS SELECTED FROM THE GROUP CONSISTING OF PHENYL, NAPHTHYL, ALKYL PHENYL, HALO PHENYL AND ALKYL HALO PHENYL GROUPS AND HAVING AT LEAST ONE HYDROGEN ATTACHED TO THE AMINO NITROGEN, THE IMPROVEMENT WHICH COMPRISES INTIMATELY DISPERSING BOTH REACTANTS IN SUBSTABTIALLY AQUEOUS REACTION MEDIUM CONTAINING AS A SURFACE ACTIVE AGENT A METAL SALT OF LIGNIN SULFONIC ACID IN AN AMOUNT BETWEEN ABOUT 0.2 AND 2.0 WEIGHT PERCENT OF THE TOTAL REACTION MIXTURE AND CONDUCTING THE REACTION FOR A PERIOD OF 30 MINUTES OF 2 HOURS.
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) | 1961-01-13 | 1961-07-15 | 1962-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-01-13 | 1965-07-15 | 1966-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-01-13 | 1969-07-15 | 1970-01-14 | $7700.00 | Window Closed / Lapsed |