EP0759463A2
Expired / Lapsed
EP
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Detergent compositions
Assignee: Unilever PLC
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Filing: 1996-07-22
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Granted: —
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Expires: 2016-07-22
Abstract
Abstract A particulate detergent composition of high bulk density comprises a non-spray-dried homogeneous particulate base powder and other ingredients in the form of separate particles or granules, the other ingredients including from 0.5 to 10 wt% of separate granules of a polycarboxylate polymer, for example, an acrylic/maleic copolymer. The separate polymer granules preferably have an average particle size of at least 300 µm, a bulk density of at least 500 g/litre, and comprise at least 80 wt% polymer.
Inventors
- 👤 Jelles Vincent Unilever Res. Lab. Boskamp
- 👤 Andrew Paul Unilever Res. Lab. Chapple
- 👤 Fredericus Cornelis P.M. Unilever Res. Lab Dobbe
- 👤 Michael Hull
- 👤 Alastair Richard Unilever Res. Lab. Sanderson
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-23 21:02
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/39; C11D3/3942; C11D17/00; C11D17/06; C11D17/065; C11D3/02; C11D3/12; C11D3/124; C11D3/1246; C11D3/128; C11D3/16; C11D3/37; C11D3/3746; C11D3/3757; C11D3/3761
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
120 words
A particulate detergent composition of high bulk density comprising a non-spray-dried homogeneous particulate base powder and other ingredients in the form of separate particles or granules, and including a polycarboxylate polymer, characterised in that it comprises: (i) from 40 to 90 wt% of a non-spray-dried homogeneous particulate base powder having a bulk density of at least 600 g/litre, comprising from 5 to 50 wt% of one or more detergent-active compounds and from 10 to 80 wt% of an alkali metal aluminosilicate builder, (ii) from 0.5 to 10 wt% of separate granules of a polycarboxylate polymer, and optionally (iii) other ingredients in the form of separate particles or granules, to 100 wt%, all percentages being based on the total detergent composition.
Claim 2
Dependent Claim
18 words
A detergent composition as claimed in claim 1, characterised in that the polymer (ii) is an acrylate/maleate copolymer.
Claim 3
Dependent Claim
23 words
A detergent composition as claimed in any preceding claim, characterised in that it comprises from 1 to 8 wt% of the polymer (ii).
Claim 4
Dependent Claim
25 words
A detergent composition as claimed in any preceding claim, characterised in that the polymer granules have an average particle size of at least 300 µm.
Claim 5
Dependent Claim
24 words
A detergent composition as claimed in any preceding claim, characterised in that the polymer granules have a bulk density of at least 500 g/litre.
Claim 6
Dependent Claim
21 words
A detergent composition as claimed in any preceding claim, characterised in that the polymer granules comprise at least 80 wt% polymer.
Claim 7
Dependent Claim
30 words
A detergent composition as claimed in any preceding claim, characterised in that the other ingredients (iii) comprise a peroxy bleach compound in an amount of from 5 to 35 wt%.
Claim 8
Dependent Claim
18 words
A detergent composition as claimed in claim 7, characterised in that the peroxy bleach compound comprises sodium percarbonate.
Claim 9
Dependent Claim
85 words
Use of a polycarboxylate polymer in an amount of from 0.5 to 10 wt%, in the form of separate granules, in admixture with from 40 to 90 wt% of separate granules of a non-spray-dried homogeneous detergent base powder having a bulk density of at least 600 g/litre and comprising from 5 to 50 wt% of one or more detergent-active compounds and from 10 to 80 wt% of an alkali metal aluminosilicate builder, all percentages being based on the total detergent composition, to improve detergency performance.
Claim 10
Dependent Claim
112 words
Use of a polycarboxylate polymer in an amount of from 0.5 to 10 wt%, in the form of separate granules, in admixture with from 40 to 90 wt% of separate grnaules of a non-spray-dried homogeneous detergent base powder having a bulk density of at least 600 g/litre and comprising from 5 to 50 wt% of one or more detergent-active compounds and from 10 to 80 wt% of an alkali metal aluminosilicate builder, and in admixture with from 5 to 35 wt% of separate particles of a peroxy bleach compound, all percentages being based on the total detergent composition, to improve detergency performance and to increase the stability of the peroxy bleach compound.
References Cited (Backward Citations)
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