Patent EP0331283A1 successfully refreshed from Google Patents.
EP0241962A2
Expired / Lapsed
EP
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Granular non-phosphorus 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 Granular detergent bleach compositions substantially free of phosphorus-containing material comprising as builder 1) a carbonate/calcite mixture, 2) an aluminosilicate cation exchange material, 3) a nitrilotriacetic acid compound or a mixture of 2) and 3); a peroxygen bleaching agent and a granular non-phosphorus bleach activator composition comprising: (a) 50-90% by weight of a bleach activator; (b) 5-45% by weight of an inert non-alkaline, non-phosphate water-soluble salt; and (c) 1-15% by weight of a water-soluble, low- to non-carboxylate containing film-forming polymeric material of average molecular weight of from 500-1,000,000. The granular non-phosphorus bleach activator composition has the advantage that it does not cause poisoning of calcite.
Inventors
- 👤 James Gavin De Bernat
- 👤 Ian Donald Robb
- 👤 Raymond John Wilde
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-27 09:38
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/39; C11D3/3902; C11D3/3905; C11D3/3907; C11D3/02; C11D3/04; C11D3/10; C11D3/12; C11D3/1233; C11D3/124; C11D3/1246; C11D3/128; C11D3/16; C11D3/26; C11D3/33; C11D3/37; C11D3/3746; C11D3/3753
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
96 words
Detergent bleach composition substantially free of phosphorus-containing material comprising: (i) a detergent-active material; (ii) a water-soluble carbonate material which is a detergency builder; (iii) a water-insoluble particulate carbonate material which is a seed crystal for calcium carbonate; (iv) a peroxygen bleaching agent; and (v) a non-phosphorus granular bleach activator composition comprising: (a) from 50-90% by weight of a bleach activator; (b) from 5-45% by weight of an inert non-alkaline,non-phosphate, water-soluble inorganic or organic salt; and (c) from 1-15% by weight of a water-soluble, low- to non-carboxylate containing film-forming polymeric material of average molecular weight from 500-1,000,000.
Claim 2
Dependent Claim
96 words
Detergent bleach composition substantially free of phosphorus-containing material comprising: (i) a detergent-active material; (ii) a water-soluble carbonate material which is a detergency builder; (iii) a water-insoluble particulate carbonate material which is a seed crystal for calcium carbonate; (iv) a peroxygen bleaching agent; and (v) a non-phosphorus granular bleach activator composition comprising: (a) from 50-90% by weight of a bleach activator; (b) from 5-45% by weight of an inert non-alkaline,non-phosphate, water-soluble inorganic or organic salt; and (c) from 1-15% by weight of a water-soluble, low- to non-carboxylate containing film-forming polymeric material of average molecular weight from 500-1,000,000.
Claim 3
Dependent Claim
93 words
Detergent bleach composition substantially free of phosphorus-containing material comprising: (i) a detergent-active material; (ii) a non-phosphate builder selected from the group consisting of aluminosilicate cation exchange material, nitrilotriacetic acid compounds, and mixtures thereof; (iii) a peroxygen bleaching agent; and (iv) a non-phosphorus granular bleach activator composition comprising: (a) from 50-90% by weight of a bleach activator; (b) from 5-45% by weight of an inert, non-alkaline,non-phosphate, water-soluble inorganic or organic salt; and (c) from 1-15% by weight of a water-soluble, low- to non-carboxylate containing film-forming polymeric material of average molecular weight of from 500-1,000,000.
Claim 4
Dependent Claim
93 words
Detergent bleach composition substantially free of phosphorus-containing material comprising: (i) a detergent-active material; (ii) a non-phosphate builder selected from the group consisting of aluminosilicate cation exchange material, nitrilotriacetic acid compounds, and mixtures thereof; (iii) a peroxygen bleaching agent; and (iv) a non-phosphorus granular bleach activator composition comprising: (a) from 50-90% by weight of a bleach activator; (b) from 5-45% by weight of an inert, non-alkaline,non-phosphate, water-soluble inorganic or organic salt; and (c) from 1-15% by weight of a water-soluble, low- to non-carboxylate containing film-forming polymeric material of average molecular weight of from 500-1,000,000.
Claim 5
Dependent Claim
18 words
Detergent bleach composition according to claim 1 or 2, characterized in that said water-soluble salt is sodium sulphate.
Claim 6
Dependent Claim
33 words
Detergent bleach composition according to claim 1, 2 or 3, characterized in that said polymeric material is a homo- or copolymer having a carboxyl group to polymer weight ratio of less than 1:5.
Claim 7
Dependent Claim
19 words
Detergent bleach composition according to claim 1, 3 or 4, characterized in that said water-insoluble carbonate material is calcite.
Claim 8
Dependent Claim
49 words
Detergent bleach composition according to claim 1, 3, 4, or 5, characterized in that it comprises 5-40% by weight of detergent-active material, 5-75% by weight of water-soluble carbonate material, 5-60% by weight of calcite, 5-30% by weight of peroxygen bleaching agent, and from 0-5-15% by weight of bleach activator.
Claim 9
Dependent Claim
21 words
Detergent bleach composition according to claim 2, characterized in that said non-phosphate builder is a mixture of zeolite and sodium nitrilotriacetate.
Claim 10
Dependent Claim
46 words
Detergent bleach composition according to claim 2, 3, 4 or 7, characterized in that it comprises: from 5-40% by weight of detergent-active material; from 5-80% by weight of non-phosphate builder; from 5-30% by weight of peroxygen bleaching agent; and from 0.5-15% by weight of bleach activator.
References Cited (Backward Citations)
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