US4207199A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Solid cold bleach activators for detergents and cleaning agents containing an active oxygen donor
Assignee: BASF SE
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Filing: 1978-07-24
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Granted: 1980-06-10
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Expires: 1998-07-24
Abstract
Abstract Solid cold bleach activator formulations for detergents which contain, as the active ingredient, a compound carrying acyl groups adsorbed on a three-dimensionally crosslinked water-insoluble inorganic compound having silicon-oxygen and/or aluminum-oxygen bonds.
Inventors
- 👤 Johannes Perner
- 👤 Herbert Helfert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 04:23
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/39; C11D3/3902; C11D3/3905; C11D3/3935; C11D17/00; C11D17/0034; C11D3/02; C11D3/12; C11D3/1233; C11D3/124; C11D3/1246; C11D3/128; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2982; Y10T428/2991; Y10T428/2993
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
137 words
A solid cold bleach activator formulation for a detergent to which an inorganic per-compound is admixed as a bleaching agent, which formulation consisting essentially of: (a) a liquid compound containing acyl groups, said compound being selected from the group consisting of diacetylmethylamine, diacetylbutylamine, triacetylethanolamine, benzoyl chloride, acetic anhydride, diacetylethylamine, diacetylpropylamine, diacetylisopropylamine, diacetylisobutylamine, acetyl-propionyl-methylamine, di-propionyl-methylamine, acetyl-benzoyl-methylamine, triacetyl-iso-propanolamine, triacethylethanolamine, propionic anhydride, butyric anhydride, isobutyric anhydride, N-acetylpyrrolidone, N-acetylcaprolactam and mixtures thereof, said compound (a) being absorbed on (b) a three-dimensionally crosslinked macro-molecular water-insoluble inorganic compound whose structure is characterized by silicon-oxygen bonds, the silicon being in an oxidation state of +4, aluminum-oxygen bonds or both types of bonds, said inorganic compound being selected from the group consisting of kiesel-guhr, a magnesium aluminum silicate, sodium aluminum silicate or calcium aluminum silicate, an activated silica, a silica aerogel and an aluminum oxide.
Claim 2
Dependent Claim
137 words
A solid cold bleach activator formulation for a detergent to which an inorganic per-compound is admixed as a bleaching agent, which formulation consisting essentially of: (a) a liquid compound containing acyl groups, said compound being selected from the group consisting of diacetylmethylamine, diacetylbutylamine, triacetylethanolamine, benzoyl chloride, acetic anhydride, diacetylethylamine, diacetylpropylamine, diacetylisopropylamine, diacetylisobutylamine, acetyl-propionyl-methylamine, di-propionyl-methylamine, acetyl-benzoyl-methylamine, triacetyl-iso-propanolamine, triacethylethanolamine, propionic anhydride, butyric anhydride, isobutyric anhydride, N-acetylpyrrolidone, N-acetylcaprolactam and mixtures thereof, said compound (a) being absorbed on (b) a three-dimensionally crosslinked macro-molecular water-insoluble inorganic compound whose structure is characterized by silicon-oxygen bonds, the silicon being in an oxidation state of +4, aluminum-oxygen bonds or both types of bonds, said inorganic compound being selected from the group consisting of kiesel-guhr, a magnesium aluminum silicate, sodium aluminum silicate or calcium aluminum silicate, an activated silica, a silica aerogel and an aluminum oxide.
Claim 3
Dependent Claim
30 words
The cold bleach activator formulation of claim 1, in which the compound containing acyl groups is absorbed to the extent of up to 80% by weight by the inorganic compound.
Claim 4
Dependent Claim
31 words
The cold bleach activator formulation of claim 1, in which the compound containing acyl groups is absorbed is a percentage of from 30 to 60% by weight of the inorganic compound.
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) | 1983-06-10 | 1983-12-10 | 1984-06-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-06-10 | 1987-12-10 | 1988-06-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-06-10 | 1991-12-10 | 1992-06-10 | $7700.00 | Window Closed / Lapsed |