Patent EP0240057A1 successfully refreshed from Google Patents.
EP0240057A1
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EP
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Granular non-phosphorus-containing bleach activator compositions and use thereof in granular detergent bleach compositions
Assignee: Unilever PLC
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Filing: 1987-03-12
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Granted: —
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Expires: 2007-03-12
Abstract
Abstract Improved granular non-phosphorus-containing bleach activator composition and detergent bleach composition comprising said granular composition are disclosed. The granular bleach activator composition comprises (i) a finely divided bleach activator; (ii) an inert, non-alkaline, non-phosphate, water-soluble inorganic or organic salt; (iii) a water-soluble, film-forming polymeric material of average molecular weight of from about 500-1,000,000; and (iv) a smectite or alumino silicate clay material. The granular bleach activator composition can be stably and effectively used in substantially phosphorus-free granular detergent compositions.
Inventors
- 👤 James Gavin De Bernat
- 👤 Ian Donald Robb
- 👤 Raymond John Wilde
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-02 23:03
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/39; C11D3/3902; C11D3/3905; C11D3/3935; C11D3/02; C11D3/12; C11D3/124; C11D3/1246; C11D3/1253; C11D3/126; C11D3/3907
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
46 words
Granular non-phosphorus-containing bleach activator composition comprising : (i) a finely divided bleach activator; (II) an inert, non-alkaline, non-phosphate, water-soluble inorganic or organic salt; (iii) a water-soluble, film-forming polymeric material of average molecular weight of from about 500-1,000,000; and (iv) a smectite or alumino silicate clay material.
Claim 2
Dependent Claim
46 words
Granular non-phosphorus-containing bleach activator composition comprising : (i) a finely divided bleach activator; (II) an inert, non-alkaline, non-phosphate, water-soluble inorganic or organic salt; (iii) a water-soluble, film-forming polymeric material of average molecular weight of from about 500-1,000,000; and (iv) a smectite or alumino silicate clay material.
Claim 3
Dependent Claim
55 words
Granular bleach activator composition according to Claim 1, characterized in that it comprises : (i) from 55-90% by weight of the finely divided bleach activator; (ii) from 3-20% by weight of the inorganic or organic salt; (iii) from 1-10% by weight of said polymeric material; and (iv) from 0.5-15% by weight of said clay material.
Claim 4
Dependent Claim
18 words
Granular bleach activator composition according to Claim 1 or 2, characterized in that said salt is sodium sulphate.
Claim 5
Dependent Claim
19 words
Granular bleach activator composition according to Claim 1, 2 or 3, characterized in that said clay material is bentonite.
Claim 6
Dependent Claim
44 words
A detergent bleach composition which is substantially free of phosphorus-containing material, comprising : (a) a detergent active material; (b) a non-phosphorus-containing detergency builder; (c) a peroxygen bleaching agent; and (d) a granular non-phosphorus-containing bleach activator composition according to any of the above Claims 1-4.
Claim 7
Dependent Claim
56 words
A detergent bleach composition according to Claim 5, characterized in that it comprises : (a) from 5-40% by weight of said detergent-active material; (b) from 5-80% by weight of said detergency builder; (c) from 5-30% by weight of said peroxygen bleaching agent; and (d) from 0.5-15% by weight of bleach activator contained in said granular composition.
Claim 8
Dependent Claim
40 words
A detergent bleach composition according to Claim 5 or 6, characterized in that said non-phosphorus detergency builder is selected from the group consisting of 1) alumino silicate cation-exchange materials, 2) nitrilotriacetic acid compounds, 3) polycarboxylate polymers, and 4) mixtures thereof.
References Cited (Backward Citations)
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