Patent US3846070A successfully refreshed from Google Patents.
US3846070A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the dyeing of polyester textile materials
Assignee: Bayer AG
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Filing: 1971-12-23
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Granted: 1974-11-05
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Expires: 1991-12-23
Abstract
Abstract 1. PROCESS FOR DYEING POLYESTER TEXTILE MATERIAL COMPRISING THE STEPS OF (1) IMMERSING THE POLYESTER TEXTILE MATERIAL IN A NONAQUEOUS DYEBATH CONSISTING ESSENTIALLY OF (A) WATER-IMMISCIBLE ORGANIC SOLVENT HAVING A BOILING POINT OF 40* C-150*C., (B) DISPERSE DYESTUFF; (C) WATER-SOLUBLE AROMATIC POLYSULPHONIC ACID ANIONIC DISPERSING AGENT; AND (D) CATIONIC DISPERSING AGENT, NON-IONIC DISPERING AGENT OR MIXTURE THEREOF; AND (2) LEAVING THE DYEING IN SAID DYEBATH UNTIL THE DESIRED DEPTH OF COLOR HAS BEEN OBTAINED .
Inventors
- 👤 W Langmann
- 👤 R Kuth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 10:41
CPC Classifications
D; D06; D06P; D06P1/00; D06P1/90; D06P1/92; D06P1/922; Y; Y10; Y10S; Y10S8/00; Y10S8/90; Y10S8/903; Y10S8/904; Y10S8/905; Y10S8/907; Y10S8/908; Y10S8/91; Y10S8/912; Y10S8/92; Y10S8/922
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
74 words
PROCESS FOR DYEING POLYESTER TEXTILE MATERIAL COMPRISING THE STEPS OF (1) IMMERSING THE POLYESTER TEXTILE MATERIAL IN A NONAQUEOUS DYEBATH CONSISTING ESSENTIALLY OF (A) WATER-IMMISCIBLE ORGANIC SOLVENT HAVING A BOILING POINT OF 40* C-150*C., (B) DISPERSE DYESTUFF; (C) WATER-SOLUBLE AROMATIC POLYSULPHONIC ACID ANIONIC DISPERSING AGENT; AND (D) CATIONIC DISPERSING AGENT, NON-IONIC DISPERING AGENT OR MIXTURE THEREOF; AND (2) LEAVING THE DYEING IN SAID DYEBATH UNTIL THE DESIRED DEPTH OF COLOR HAS BEEN OBTAINED .
Claim 2
Dependent Claim
74 words
PROCESS FOR DYEING POLYESTER TEXTILE MATERIAL COMPRISING THE STEPS OF (1) IMMERSING THE POLYESTER TEXTILE MATERIAL IN A NONAQUEOUS DYEBATH CONSISTING ESSENTIALLY OF (A) WATER-IMMISCIBLE ORGANIC SOLVENT HAVING A BOILING POINT OF 40* C-150*C., (B) DISPERSE DYESTUFF; (C) WATER-SOLUBLE AROMATIC POLYSULPHONIC ACID ANIONIC DISPERSING AGENT; AND (D) CATIONIC DISPERSING AGENT, NON-IONIC DISPERING AGENT OR MIXTURE THEREOF; AND (2) LEAVING THE DYEING IN SAID DYEBATH UNTIL THE DESIRED DEPTH OF COLOR HAS BEEN OBTAINED .
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-11-04 | 1978-05-06 | 1978-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-11-04 | 1982-05-06 | 1982-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-11-04 | 1986-05-06 | 1986-11-05 | $7700.00 | Window Closed / Lapsed |