US3708260A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Textile treatment process
Assignee: Imperial Chemical Industries Ltd
•
Filing: 1970-04-30
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Granted: 1973-01-02
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Expires: 1990-04-30
Abstract
Abstract A process for the treatment of textile materials which comprises applying to the textile material an emulsion or suspension of one or more bleaching agents in a hydrocarbon or halogenated hydrocarbon solvent, substantially removing the solvent from the textile material, and subsequently washing the textile material, and an emulsion or suspension of a bleaching agent for use therein.
Inventors
- 👤 C Marshall
- 👤 S Kalinowski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:19
CPC Classifications
D; D06; D06L; D06L4/00; D06L4/20; D06L4/28; D06L1/00; D06L1/02; D06L1/06; D06L4/10; D06L4/17; D06L4/22; D06L4/23; D06L4/24; D06L4/26
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
27 words
A process as claimed in claim 1 wherein the said solvent is selected from the group consisting of white spirit, trichloroethylene, perchloroethylene, 1,1,2-trichloro-1,2,2-trifluoroethane, 1,1,1-trichloroethane and mixtures thereof.
Claim 2
Dependent Claim
20 words
A process as claimed in claim 1 wherein the solvent is vaporized rapidly to remove it from the textile material.
Claim 3
Dependent Claim
23 words
A process as claimed in claim 1 wherein the textile material is washed in an alkaline aqueous solution after removal of the solvent.
Claim 4
Dependent Claim
21 words
A process as claimed in claim 1 where the dispersion is an emulsion of a solution of the said bleaching agents.
Claim 5
Dependent Claim
16 words
A process as claimed in claim 1 wherein the solvent is the said halogenated hydrocarbon solvent.
Claim 6
Dependent Claim
29 words
A process as claimed in claim 1 wherein an emulsifying agent is incorporated in the dispersion, and said emulsifying agent is stable in the presence of said bleaching agent.
Claim 7
Dependent Claim
19 words
A process as claimed in claim 3 wherein the solvent is vaporized by contacting the textile material with steam.
Claim 8
Dependent Claim
17 words
A process as claimed in claim 7 wherein the emulsifying agent is also a surface active agent.
Claim 9
Dependent Claim
35 words
A process as claimed in claim 7 wherein the dispersion incorporates a surface active agent in addition to an emulsifying agent, and said surface active agent is stable in the presence of said bleaching agent.
Claim 10
Dependent Claim
25 words
A process as claimed in claim 8 wherein the textile material is contacted with steam for a period of from 20 seconds to 120 seconds.
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) | 1976-01-02 | 1976-07-03 | 1977-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-02 | 1980-07-03 | 1981-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-02 | 1984-07-03 | 1985-01-02 | $7700.00 | Window Closed / Lapsed |