US3640674A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for coloring synthetic textile materials with monoazo dyestuff dispersion
Assignee: Imperial Chemical Industries Ltd
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Filing: 1969-06-23
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Granted: 1972-02-08
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Expires: 1989-06-23
Abstract
Abstract WHEREIN A is an unsubstituted or substituted aryl radical; n is 0 or 1; Z is an unsubstituted or substituted alkyl or aryl radical; X and Y are each independently hydrogen, unsubstituted or substituted alkyl or aryl or -CN, -COOR, -COR and -CONR1R2 wherein R is unsubstituted or substituted alkyl or aryl and R1 and R2 each independently represent hydrogen or unsubstituted or substituted alkyl or aryl. Process for coloring synthetic textile materials with an aqueous dispersion of a water-insoluble monoazo dyestuff, of the formula:
Inventors
- 👤 Alistair Howard Berrie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:19
CPC Classifications
D; D06; D06P; D06P3/00; D06P3/34; D06P3/36; C; C09; C09B; C09B29/00; C09B29/34; C09B29/36; C09B29/3604; C09B29/3617; C09B29/3621; C09B29/3626; C09B29/363; Y; Y10; Y10S; Y10S8/00; Y10S8/92; Y10S8/921; Y10S8/922; Y10S8/924
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
13 words
Process as claimed in claim 1 wherein the dyestuff is of the formula:
Claim 2
Dependent Claim
16 words
Process as claimed in claim 1 wherein the textile material is a polyethylene terephthalate textile material.
Claim 3
Dependent Claim
26 words
Process as claimed in claim 1 wherein the textile is selected from the group consisting of secondary cellulose acetate, cellulose triacetate, polyhexamethylene adipamide and polyethylene terephthalate.
References Cited (Backward Citations)
US3487066A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-02-07 | 1975-08-09 | 1976-02-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-02-07 | 1979-08-09 | 1980-02-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-02-07 | 1983-08-09 | 1984-02-08 | $7700.00 | Window Closed / Lapsed |