US2921830A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydron blue dyestuff compositions
Assignee: GAF Chemicals Corp
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Filing: 1956-07-31
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Granted: 1960-01-19
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Expires: 1976-07-31
Abstract
No abstract record available.
Inventors
- 👤 Taras John
- 👤 Robert E Brouillard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 07:07
CPC Classifications
C; C09; C09B; C09B67/00; C09B67/0071; C09B67/0077; D; D06; D06P; D06P1/00; D06P1/30
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
97 words
A READY TO DYE SULFUR DYESTUFF IN STABLE AQUEOUS EMULSION FORM COMPRISING 8 TO 15 PARTS BY WEIGHT OF A CARBOZOLE INDOPHENOL SULFUR DYE IN REDUCED FORM, 30-55 PARTS BY WEIGHT OF AN ALIPHATIC HYDROXY COMPOUND CONTAINING FROM 1 TO 10 CARBON ATOMS AND SELECTED FROM THE GROUP CONSISTING OF ALIPHATIC MONO- AND DI-ALKANOLS, ALKOXY ALKANOLS, ETHYLENE GLYCOL MONOALKYL ETHERS AND DIETHYLENE GLYCOL MONOALKYL ETHERS, 3-15 PARTS BY WEIGHT OF A SURFACE ACTIVE AGENT SELECTED FROM THE CLASS CONSISTING OF IONIC AND NON-IONIC SURFACE ACTIVE AGENTS, AND FROM 9 TO 15 PARTS BY WEIGHT OF SODIUM SULFIDE.
Claim 2
Dependent Claim
97 words
A READY TO DYE SULFUR DYESTUFF IN STABLE AQUEOUS EMULSION FORM COMPRISING 8 TO 15 PARTS BY WEIGHT OF A CARBOZOLE INDOPHENOL SULFUR DYE IN REDUCED FORM, 30-55 PARTS BY WEIGHT OF AN ALIPHATIC HYDROXY COMPOUND CONTAINING FROM 1 TO 10 CARBON ATOMS AND SELECTED FROM THE GROUP CONSISTING OF ALIPHATIC MONO- AND DI-ALKANOLS, ALKOXY ALKANOLS, ETHYLENE GLYCOL MONOALKYL ETHERS AND DIETHYLENE GLYCOL MONOALKYL ETHERS, 3-15 PARTS BY WEIGHT OF A SURFACE ACTIVE AGENT SELECTED FROM THE CLASS CONSISTING OF IONIC AND NON-IONIC SURFACE ACTIVE AGENTS, AND FROM 9 TO 15 PARTS BY WEIGHT OF SODIUM SULFIDE.
Claim 3
Dependent Claim
144 words
A PROCESS OF PREPARING A READY TO DYE FLUID SULFUR DYESTUFF IN STABLE EMULSION FROM WHICH COMPRISES HEATING AT REFLUX 12-35 PARTS BY WEIGHT OF ACRBOZOLE INDOPHENOL IN THE PRESENCE OF 15-120 PARTS BY WEIGHT OF WATER, 20-105 PARTS BY WEIGHT OF AN ALIPHATIC HYDROXY COMPOUND CONTAINING FROM 1 TO 10 CARBON ATOMS AND SELECTED FROM THE GROUP CONSISTING OF ALIPHATIC MONO- AND DI-ALKANOLS, ALKOXY ALKANOLS, ETHYLENE GLYCOL MONOALKYL ETHERS AND DIETHYLENE GLYCOL MONOALKYL ETHERS, 0-40 PARTS BY WEIGHT OF CAUSTIC SODA, 4-20 PARTS BY WEIGHT OF SODIUM SULFIDE, 20-85 PARTS BY WEIGHT OF SULFUR AND FROM 3-15 PARTS BY WEIGHT OF A SURFACE ACTIVE AGENT SELECTED FROM THE CLASS CONSISTING OF IONIC AND NON-IONIC SURFACE ACTIVE AGENTS, COOLING THE HEATED MASS TO 100*C. AND DILUTING APPROXIMATELY TWO PARTS BY WEIGHT THEREOF WITH 1 PART BY WEIGHT OF A 20-22% AQUEOUS SODIUM SULFIDE SOLUTION.
Claim 4
Dependent Claim
144 words
A PROCESS OF PREPARING A READY TO DYE FLUID SULFUR DYESTUFF IN STABLE EMULSION FROM WHICH COMPRISES HEATING AT REFLUX 12-35 PARTS BY WEIGHT OF ACRBOZOLE INDOPHENOL IN THE PRESENCE OF 15-120 PARTS BY WEIGHT OF WATER, 20-105 PARTS BY WEIGHT OF AN ALIPHATIC HYDROXY COMPOUND CONTAINING FROM 1 TO 10 CARBON ATOMS AND SELECTED FROM THE GROUP CONSISTING OF ALIPHATIC MONO- AND DI-ALKANOLS, ALKOXY ALKANOLS, ETHYLENE GLYCOL MONOALKYL ETHERS AND DIETHYLENE GLYCOL MONOALKYL ETHERS, 0-40 PARTS BY WEIGHT OF CAUSTIC SODA, 4-20 PARTS BY WEIGHT OF SODIUM SULFIDE, 20-85 PARTS BY WEIGHT OF SULFUR AND FROM 3-15 PARTS BY WEIGHT OF A SURFACE ACTIVE AGENT SELECTED FROM THE CLASS CONSISTING OF IONIC AND NON-IONIC SURFACE ACTIVE AGENTS, COOLING THE HEATED MASS TO 100*C. AND DILUTING APPROXIMATELY TWO PARTS BY WEIGHT THEREOF WITH 1 PART BY WEIGHT OF A 20-22% AQUEOUS SODIUM SULFIDE SOLUTION.
References Cited (Backward Citations)
US2657112A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-01-18 | 1963-07-20 | 1964-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-01-18 | 1967-07-20 | 1968-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-01-18 | 1971-07-20 | 1972-01-19 | $7700.00 | Window Closed / Lapsed |