US3765832A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dye solutions thickened with borax crosslinked polygalactomannan carboxy-, hydroxy- or carbanylalkyl ethers
Assignee: General Mills Chemicals Inc
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Filing: 1972-04-14
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Granted: 1973-10-16
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Expires: 1992-04-14
Abstract
Abstract An improvement in fabric dyeing and printing comprising thickening cationic dye solutions with selected polygalactomannan derivatives.
Inventors
- 👤 G Shelso
- 👤 B Seaman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 06:02
CPC Classifications
D; D06; D06P; D06P1/00; D06P1/0004; D06P1/0016; D06P1/41; D06P1/44; D06P1/46; D06P1/48; Y; Y10; Y10S; Y10S8/00; Y10S8/929
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
23 words
The composition of claim 1 wherein the thickener is in amounts of about 0.15% to 2.0% by weight of the cationic dye sol.
Claim 2
Dependent Claim
11 words
The composition of claim 1 wherein the thickener is carboxymethyl guar.
Claim 3
Dependent Claim
11 words
The composition of claim 1 wherein the thickener is carboxyethyl guar.
Claim 4
Dependent Claim
11 words
The composition of claim 1 wherein the thickener is carbamylethyl guar.
Claim 5
Dependent Claim
13 words
The composition of claim 1 wherein the thickener is carboxyethyl locust bean gum.
Claim 6
Dependent Claim
11 words
The composition of claim 1 wherein the thickener is hydroxypropyl guar.
Claim 7
Dependent Claim
11 words
The composition of claim 1 wherein the thickener is hydroxyethyl guar.
Claim 8
Dependent Claim
73 words
In the process of dyeing fabrics using a sol of a cationic dye containing borax the improvement consisting of using as the thickener a polygalactomannan derivative selected from carboxyalkyl ethers of polygalactomannan wherein the alkyl radical contains one to two carbon atoms, hydroxyalkyl ethers of polygalactomannan wherein the alkyl radical contains two to three carbon atoms, or carbamylethyl ethers of polygalactomannan, and the molar substitution of the substituting radical is at least 0.1.
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) | 1976-10-15 | 1977-04-16 | 1977-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-15 | 1981-04-16 | 1981-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-15 | 1985-04-16 | 1985-10-16 | $7700.00 | Window Closed / Lapsed |