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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
•
Filing: 1978-07-24
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Granted: 1980-06-10
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Expires: 1998-07-24
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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 14:09
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)

US3163606A Cited
US3532634A Cited
US3583924A Cited
US3687803A Cited
US4087383A Cited

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

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