US4270916A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dyeing composition and method
Assignee: Monsanto Co
•
Filing: 1978-09-06
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Granted: 1981-06-02
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Expires: 1998-09-06
Abstract
Abstract Cationic or certain anionic dyes are rendered compatible with normally incompatible anionic and nonanionic polymers by the addition of certain surface active agents.
Inventors
- 👤 Joseph S. Racciato
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 01:14
CPC Classifications
D; D06; D06P; D06P1/00; D06P1/44; D06P1/60; C; C09; C09B; C09B67/00; C09B67/0071; C09B67/0072; C09B67/0075; D06P1/41; D06P1/46; D06P1/48; D06P1/52; D06P1/5207; D06P1/525; D06P1/5257
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
57 words
A dyeing or printing aqueous composition comprising (a) an anionic polymer which is algin, xanthan gum, S-7 heteropolysaccharide gum, polyacrylic acid, or polymethacrylic acid; (b) a cationic dye which normally causes gelation or precipitation when mixed with said anionic polymer; and (c) a nonionic surfactant, an amphoteric surfactant, or an anionic surfactant other than napthalene sulfonate condensates.
Claim 2
Dependent Claim
57 words
A dyeing or printing aqueous composition comprising (a) an anionic polymer which is algin, xanthan gum, S-7 heteropolysaccharide gum, polyacrylic acid, or polymethacrylic acid; (b) a cationic dye which normally causes gelation or precipitation when mixed with said anionic polymer; and (c) a nonionic surfactant, an amphoteric surfactant, or an anionic surfactant other than napthalene sulfonate condensates.
Claim 3
Dependent Claim
31 words
A composition of claim 1 wherein the surfactant is present in an amount of from about 50 weight percent to about 500 weight percent based on the weight of the dye.
Claim 4
Independent Claim
67 words
A method of preventing precipitation or gelation in an aqueous composition of (a) an anionic polymer which is algin, xanthan gum, S-7 heteropolysaccharide gum, polyacrylic acid, or polymethacrylic acid; and (b) a cationic dye which normally causes gelation or precipitation when mixed with said anionic polymer, comprising incorporating in the aqueous composition a nonionic surfactant, an amphoteric surfactant, or an anionic surfactant other than napthalene sulfonate condensates.
Claim 5
Independent Claim
67 words
A method of preventing precipitation or gelation in an aqueous composition of (a) an anionic polymer which is algin, xanthan gum, S-7 heteropolysaccharide gum, polyacrylic acid, or polymethacrylic acid; and (b) a cationic dye which normally causes gelation or precipitation when mixed with said anionic polymer, comprising incorporating in the aqueous composition a nonionic surfactant, an amphoteric surfactant, or an anionic surfactant other than napthalene sulfonate condensates.
Claim 6
Dependent Claim
30 words
A method of claim 3 wherein the surfactant is present in an amount of from 50 weight percent to about 500 weight percent based on the weight of the dye.
Claim 7
Independent Claim
71 words
A method of preparing an aqueous composition comprising (a) an anionic polymer which is algin, xanthan gum, S-7 heteropolysaccharide gum, polyacrylic acid, or polymethacrylic acid; and (b) a cationic dye which normally causes gelation or precipitation when mixed with said anionic polymer, which comprises mixing said cationic dye with a nonionic surfactant, an amphoteric surfactant, or an anionic surfactant other than naphthalene sulfonate condensates and then adding thereto said anionic polymer.
Claim 8
Independent Claim
71 words
A method of preparing an aqueous composition comprising (a) an anionic polymer which is algin, xanthan gum, S-7 heteropolysaccharide gum, polyacrylic acid, or polymethacrylic acid; and (b) a cationic dye which normally causes gelation or precipitation when mixed with said anionic polymer, which comprises mixing said cationic dye with a nonionic surfactant, an amphoteric surfactant, or an anionic surfactant other than naphthalene sulfonate condensates and then adding thereto said anionic polymer.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-06-01 | 1984-12-01 | 1985-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-06-01 | 1988-12-01 | 1989-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-06-01 | 1992-12-01 | 1993-06-02 | $7700.00 | Window Closed / Lapsed |