Patent US3776690A successfully refreshed from Google Patents.
US3776690A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for dyeing textiles made of polyester or cellulose triacetate
Assignee: Cassella Farbwerke Mainkur AG
•
Filing: 1971-12-07
•
Granted: 1973-12-04
•
Expires: 1991-12-07
Abstract
Abstract Process for dyeing textiles made of polyester or cellulose triacetate with dispersed dyes, in an aqueous medium, whereby the dyeing is carried out with the concurrent use of 0.5 - 10 c.c./1. trichloroethylene and/or perchloroethylene as carrier and an emulsifier, with pressure and temperatures above 100*C..
Inventors
- 👤 S Wiatrowski
- 👤 C Heid
- 👤 K Keil
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 09:34
CPC Classifications
D; D06; D06P; D06P1/00; D06P1/44; D06P1/64; D06P1/651; D06P1/6515; D06P1/65156; D06P1/16; D06P3/00; D06P3/34; D06P3/36; D06P5/00; D06P5/20; D06P5/2044; D06P5/2055; Y; Y10; Y10S; Y10S8/00; Y10S8/907; Y10S8/908; Y10S8/912; Y10S8/92; Y10S8/921; Y10S8/922
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
16 words
The process of claim 1 wherein the carrier is present in an amount of 1.5-5 c.c./l.
Claim 2
Dependent Claim
15 words
The process of claim 1 wherein said carrier is a mixture of trichloroethylene and perchloroethylene.
Claim 3
Dependent Claim
10 words
The process of claim 1 wherein said temperature is 105*-130*C.
Claim 4
Dependent Claim
23 words
The process of claim 1 wherein said aqueous dyebath contains 5-45 percent by weight, based on the weight of the carrier, of emulsifier.
Claim 5
Dependent Claim
23 words
The process of claim 1 wherein said aqueous dyebath contains 5-15 percent by weight, based on the weight of the carrier, of emulsifier.
Claim 6
Dependent Claim
19 words
The process of claim 1 wherein said emulsifier is a mixture of oxethylated castor oil and calcium dodecylbenzene sulfonate.
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) | 1976-12-03 | 1977-06-04 | 1977-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-03 | 1981-06-04 | 1981-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-03 | 1985-06-04 | 1985-12-04 | $7700.00 | Window Closed / Lapsed |