Patent US3787173A successfully refreshed from Google Patents.
US3787173A
Expired / Lapsed
US
⏱️ 0.0 years remaining
New colouration process
Assignee: Imperial Chemical Industries Ltd
•
Filing: 1972-03-07
•
Granted: 1974-01-22
•
Expires: 1992-03-07
Abstract
Abstract Colouration of textile materials capable of forming hydrogen bonds with amines, especially cellulosic or cellulose/polyester union materials, by impregnating the material with a watersoluble or water-dispersible compound of molecular weight above 600 containing amino or imino groups, especially a poly(ethylene imine), and subsequently contacting the material with a fibrereactive dye; or a modification of this process wherein the material is padded or printed with a padding solution or printing paste containing a water-in-oil-in-water emulsion having the dyestuff and the compound containing amino or imino groups dissolved or dispersed in separate aqueous phases.
Inventors
- 👤 J Greenshields
- 👤 V Poole
- 👤 I Jones
- 👤 J Moilliet
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:58
CPC Classifications
D; D06; D06P; D06P3/00; D06P3/58; D06P3/60; D06P3/6016; D06P1/00; D06P1/44; D06P1/46; D06P1/52; D06P3/02; D06P3/04; D06P3/10; D06P3/34; D06P3/52; D06P3/528; D06P3/66; D06P3/82; D06P3/8204; D06P3/8223; D06P3/8228; D06P3/8233; Y; Y10; Y10S; Y10S8/00; Y10S8/904; Y10S8/907; Y10S8/908; Y10S8/912
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
19 words
A process as claimed in claim 1 wherein the dye used contains a s-triazine nucleus carrying a cellulose-reactive substituent.
Claim 2
Dependent Claim
15 words
A process as claimed in claim 2 wherein the cellulose-reactive substituent is a chlorine atom.
Claim 3
Dependent Claim
16 words
A process as claimed in claim 2 wherein the cellulose-reactive substituent is a quaternary ammonium group.
Claim 4
Dependent Claim
40 words
The process of claim 1 wherein the said textile material is padded or printed with a padding solution or printing paste containing a water-in-oil-in-water emulsion having the said dyestuff and the said polyethyleneimine dissolved or dispersed in separate aqueous phases.
References Cited (Backward Citations)
US3211513A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-01-21 | 1977-07-23 | 1978-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-21 | 1981-07-23 | 1982-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-21 | 1985-07-23 | 1986-01-22 | $7700.00 | Window Closed / Lapsed |