US4153414A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cold water-soluble acid dye composition derived from the standardization of mono- and disazo acid dyes with an ammonium lignin sulfonate
Assignee: EIDP Inc
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Filing: 1977-12-27
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Granted: 1979-05-08
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Expires: 1997-12-27
Abstract
Abstract Cold water-soluble dye compositions consisting essentially of from 20-70% by weight of a sparingly soluble sulfonated, mono- or disazo acid dye, substantially in the form of its alkali metal salt, and from 80-30% by weight of an ammonium lignin sulfonate. The ammonium lignin sulfonate is used as a standardizing agent to adjust the strength of the concentrated acid dye to a level suitable for use in commercial dyeing and printing operations and to provide cold water solubility adequate for dyeing at ambient temperatures.
Inventors
- 👤 Charles D. Ver Nooy, III
- 👤 Armand P. Zinnato
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:44
CPC Classifications
C; C09; C09B; C09B67/00; C09B67/0071; C09B67/0092; C09B67/0094; C09B67/0072
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
45 words
A cold water-soluble dye composition consisting essentially of, by weight, from 20 to 70% of a sparingly soluble mono- or disulfonated, mono- or disazo acid dye, substantially in the form of its alkali metal salt, and from 80 to 30% of an ammonium lignin sulfonate.
Claim 2
Dependent Claim
45 words
A cold water-soluble dye composition consisting essentially of, by weight, from 20 to 70% of a sparingly soluble mono- or disulfonated, mono- or disazo acid dye, substantially in the form of its alkali metal salt, and from 80 to 30% of an ammonium lignin sulfonate.
Claim 3
Dependent Claim
17 words
The composition of claim 1 wherein the dye is substantially in the form of its sodium salt.
Claim 4
Dependent Claim
14 words
The composition of claim 2 wherein the dye is a monosulfonated, monoazo acid dye.
Claim 5
Dependent Claim
14 words
The composition of claim 2 wherein the dye is a disulfonated, monoazo acid dye.
Claim 6
Dependent Claim
14 words
The composition of claim 2 wherein the dye is a monosulfonated, disazo acid dye.
Claim 7
Dependent Claim
10 words
The composition of claim 3 wherein the dye is ##STR7##
Claim 8
Dependent Claim
10 words
The composition of claim 3 wherein the dye is ##STR8##
Claim 9
Dependent Claim
10 words
The composition of claim 4 wherein the dye is ##STR9##
Claim 10
Dependent Claim
10 words
The composition of claim 4 wherein the dye is ##STR10##
Claim 11
Dependent Claim
10 words
The composition of claim 5 wherein the dye is ##STR11##
Claim 12
Dependent Claim
10 words
The composition of claim 5 wherein the dye is ##STR12##
Claim 13
Dependent Claim
10 words
The composition of claim 5 wherein the dye is ##STR13##
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) | 1982-05-07 | 1982-11-06 | 1983-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-05-07 | 1986-11-06 | 1987-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-05-07 | 1990-11-06 | 1991-05-08 | $7700.00 | Window Closed / Lapsed |