US2635942A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dyeing materials made of polyvinyl derivatives
Assignee: Sandoz AG
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Filing: 1950-04-20
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Granted: 1953-04-21
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Expires: 1970-04-20
Abstract
No abstract record available.
Inventors
- 👤 Thummel Ludwing
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 16:17
CPC Classifications
D; D06; D06P; D06P3/00; D06P1/00; D06P1/0004; D06P1/0008
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
136 words
A METHOD OF COLORING MATERIAL COMPRISING A MEMBER SELECTED FROM THE GORUP CONSISTING OF POLYVINYL AND POLYVINYLIDENE CHLORIDES AND COPOLYMERIZED VINYL AND VINYLIDENE CHLORIDES WITHOUT SHRINKAGE OR DEFORMATION OF THE MATERIAL, WHICH COMPRISES DYEING THE SAID MATERIAL AT A TEMPERATURE OF 60 TO 100* C. IN AN AQUEOUS DISPERSION OF A SUBSTANTIALLY WATER-INSOLUBLE DYESTUFF, THE SAID DISPERSION CONTAINING, IN ADDITION TO A MEMBER SELECTED FROM THE GROUP CONSISTING OF DISPERSING AND EMULSIFYING AGENTS, ABOUT 1.5 TO ABOUT 4% BY WEIGHT OF EACH OF AT LEAST TWO ORGANIC LIQUIDS, ONE OF WHICH HAS A SWELLING ACTION ON SAID MATERIAL AND IS SELECTED FROM THE GROUP CONSISTING OF CHLORINATED ETHYLENES AND HYDROGENATED NAPHTHALENES, AND THE OTHER OF WHICH HAS A SWELLING -COMPENSATING ACTION ON SAID MATERIAL AND IS SELECTED FROM THE GROUP CONSISTING OF CYCLOHEXANOL, METHYLCYCLKOHEXANOL AND TRIETHANOLAMINE.
Claim 2
Independent Claim
136 words
A METHOD OF COLORING MATERIAL COMPRISING A MEMBER SELECTED FROM THE GORUP CONSISTING OF POLYVINYL AND POLYVINYLIDENE CHLORIDES AND COPOLYMERIZED VINYL AND VINYLIDENE CHLORIDES WITHOUT SHRINKAGE OR DEFORMATION OF THE MATERIAL, WHICH COMPRISES DYEING THE SAID MATERIAL AT A TEMPERATURE OF 60 TO 100* C. IN AN AQUEOUS DISPERSION OF A SUBSTANTIALLY WATER-INSOLUBLE DYESTUFF, THE SAID DISPERSION CONTAINING, IN ADDITION TO A MEMBER SELECTED FROM THE GROUP CONSISTING OF DISPERSING AND EMULSIFYING AGENTS, ABOUT 1.5 TO ABOUT 4% BY WEIGHT OF EACH OF AT LEAST TWO ORGANIC LIQUIDS, ONE OF WHICH HAS A SWELLING ACTION ON SAID MATERIAL AND IS SELECTED FROM THE GROUP CONSISTING OF CHLORINATED ETHYLENES AND HYDROGENATED NAPHTHALENES, AND THE OTHER OF WHICH HAS A SWELLING -COMPENSATING ACTION ON SAID MATERIAL AND IS SELECTED FROM THE GROUP CONSISTING OF CYCLOHEXANOL, METHYLCYCLKOHEXANOL AND TRIETHANOLAMINE.
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) | 1956-04-20 | 1956-10-20 | 1957-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-04-20 | 1960-10-20 | 1961-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-04-20 | 1964-10-20 | 1965-04-21 | $7700.00 | Window Closed / Lapsed |