Patent US3023186A successfully refreshed from Google Patents.
US3023186A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the dyeing of synthetic polyamides in the mass
Assignee: Sandoz AG
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Filing: 1958-09-12
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Granted: 1962-02-27
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Expires: 1978-09-12
Abstract
No abstract record available.
Inventors
- 👤 Geiger Georg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 04:41
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/0091
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
112 words
A PROCESS FOR THE LEVEL AND FAST DYEING OF SYNTHETIC POLYAMIDES IN THE MASS WHICH COMPRISES INCORPORATING A CONDENSATION PRODUCT ESSENTIALLY AS OBTAINED BY REACTING A CHLORINATED METAL-PHTHALOCYANINE HAVING 4 TO 8 CHLORINE ATOMS AND SELECTED FROM THE GROUP CONSISTING OF CHLORINATED COPPER-PHTHALOCYANINE, CHLORINATED NICKELPHTHALOCYANINE, CHLORINATED COBALT-PHTHALOCYANINE AND CHLORINATED IRON-PHTHALOCYANINE, WITH A MERCAPTAN SELECTED FROM THE GROUP CONSISTING OF MONO- AND DI-NUCLEAR ARYL MERCAPTANS, BENZYL MERCAPTAN AND ALKYL MERCAPTANS WITH 8 TO 12 CARBON ATOMS IN PRESENCE OF AN ALKALI METAL HYDROXIDE AND BENZYL ALCOHLOL, INTO A MELT OF A SYNTHETIC POLYMIDE SELECTED FROM THE GROUP CONSISTING OF POLYHEXAMETHYLENE ADIPAMIDE, POLYCAPROLACTAM AND POLY-WUNDECANOIC ACID, AND SPINNING THE DYED MASS INTO FILAMENT FORM.
Claim 2
Dependent Claim
112 words
A PROCESS FOR THE LEVEL AND FAST DYEING OF SYNTHETIC POLYAMIDES IN THE MASS WHICH COMPRISES INCORPORATING A CONDENSATION PRODUCT ESSENTIALLY AS OBTAINED BY REACTING A CHLORINATED METAL-PHTHALOCYANINE HAVING 4 TO 8 CHLORINE ATOMS AND SELECTED FROM THE GROUP CONSISTING OF CHLORINATED COPPER-PHTHALOCYANINE, CHLORINATED NICKELPHTHALOCYANINE, CHLORINATED COBALT-PHTHALOCYANINE AND CHLORINATED IRON-PHTHALOCYANINE, WITH A MERCAPTAN SELECTED FROM THE GROUP CONSISTING OF MONO- AND DI-NUCLEAR ARYL MERCAPTANS, BENZYL MERCAPTAN AND ALKYL MERCAPTANS WITH 8 TO 12 CARBON ATOMS IN PRESENCE OF AN ALKALI METAL HYDROXIDE AND BENZYL ALCOHLOL, INTO A MELT OF A SYNTHETIC POLYMIDE SELECTED FROM THE GROUP CONSISTING OF POLYHEXAMETHYLENE ADIPAMIDE, POLYCAPROLACTAM AND POLY-WUNDECANOIC ACID, AND SPINNING THE DYED MASS INTO FILAMENT FORM.
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) | 1965-02-26 | 1965-08-28 | 1966-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-02-26 | 1969-08-28 | 1970-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-02-26 | 1973-08-28 | 1974-02-27 | $7700.00 | Window Closed / Lapsed |