US4309298A
Expired / Lapsed
US
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Oxidative desizing agent and process for oxidative desizing
Assignee: Hoechst AG
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Filing: 1980-03-28
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Granted: 1982-01-05
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Expires: 2000-03-28
Abstract
Abstract Novel oxidative desizing agent consisting essentially of from 10 to 80, preferably 50 to 80% by weight of a surfactant and from 20 to 90, preferably 20 to 50% by weight of potassium persulfate. This desizing agent may optionally also contain from 5 to 25% by weight of a solubilizer with a simultaneous reduction of the surfactant and persulfate portions.
Inventors
- 👤 Klaus Adrian
- 👤 Gunter Rosch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 02:22
CPC Classifications
D; D06; D06L; D06L1/00; D06L1/12; D06L1/14
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
116 words
Oxidative desizing agent consisting essentially of, for use in an impregnation bath, a mixture of from 10 to 80% by weight of a surfactant selected from the group consisting of alkane sulfonates with from 8 to 20 carbon atoms, C 8 -C 20 -alkyl benzene sulfonates, C 8 -C 20 -olefinsulfonates, C 10 -C 18 -fatty alcohol sulfonates, polyethylene glycols with from 6 to 20 ethylene oxide units, C 10 -C 18 -fatty alcohol oxethylates with from 6 to 24 ethylene oxide units, C 4 -C 12 -alkylphenol oxethylates with from 6 to 20 ethylene oxide units and from 20 to 90% by weight of potassium persulfate, said mixture being prepared before use in said bath.
Claim 2
Dependent Claim
116 words
Oxidative desizing agent consisting essentially of, for use in an impregnation bath, a mixture of from 10 to 80% by weight of a surfactant selected from the group consisting of alkane sulfonates with from 8 to 20 carbon atoms, C 8 -C 20 -alkyl benzene sulfonates, C 8 -C 20 -olefinsulfonates, C 10 -C 18 -fatty alcohol sulfonates, polyethylene glycols with from 6 to 20 ethylene oxide units, C 10 -C 18 -fatty alcohol oxethylates with from 6 to 24 ethylene oxide units, C 4 -C 12 -alkylphenol oxethylates with from 6 to 20 ethylene oxide units and from 20 to 90% by weight of potassium persulfate, said mixture being prepared before use in said bath.
Claim 3
Dependent Claim
29 words
Desizing agent as claimed in claim 1, consisting essentially of from 50 to 80% by weight of a surfactant and from 20 to 50% by weight of potassium persulfate.
Claim 4
Dependent Claim
29 words
Desizing agent as claimed in claim 1, containing from 5 to 25% by weight of a solubilizer of the class containing of isopropanol, glycolic acid butylester, cyclohexanol and butyldiglycol.
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) | 1985-01-04 | 1985-07-06 | 1986-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-01-04 | 1989-07-06 | 1990-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-01-04 | 1993-07-06 | 1994-01-05 | $7700.00 | Window Closed / Lapsed |