EP0502675A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Detergent compositions
Assignee: Unilever PLC
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Filing: 1992-03-02
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Granted: —
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Expires: 2012-03-02
Abstract
Abstract A detergent composition suitable for fabric washing comprises detergent-active compounds and a detergency builder composition comprising maximum aluminium zeolite P and a polycarboxylate polymer, preferably an acrylic/maleic copolymer. The composition shows superior detergency compared with compositions containing zeolite A and polymer.
Inventors
- 👤 Jelles Vincent Unilever Research Boskamp
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-07 16:36
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/02; C11D3/12; C11D3/124; C11D3/1246; C11D3/128; C11D3/16; C11D3/37; C11D3/3746; C11D3/3757; C11D3/3761
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
68 words
1 A detergent composition suitable for fabric washing, comprising: (i) one or more detergent-active compounds selected from anionic, nonionic, cationic, amphoteric and zwitterionic detergent-active compounds and combinations thereof, and (ii) a detergency builder system, characterised in that the detergency builder system (ii) comprises (a) zeolite P having a silicon to aluminium ratio not exceeding 1.33 (hereinafter zeolite MAP), and (b) a polycarboxylate polymer in acid and/or salt form.
Claim 2
Dependent Claim
68 words
1 A detergent composition suitable for fabric washing, comprising: (i) one or more detergent-active compounds selected from anionic, nonionic, cationic, amphoteric and zwitterionic detergent-active compounds and combinations thereof, and (ii) a detergency builder system, characterised in that the detergency builder system (ii) comprises (a) zeolite P having a silicon to aluminium ratio not exceeding 1.33 (hereinafter zeolite MAP), and (b) a polycarboxylate polymer in acid and/or salt form.
Claim 3
Dependent Claim
25 words
2 A detergent composition as claimed in claim 1, characterised in that the zeolite MAP has a silicon to aluminium ratio not greater than 1.15.
Claim 4
Dependent Claim
25 words
3 A detergent composition as claimed in claim 1, characterised in that the zeolite MAP has a silicon to aluminium ratio not greater than 1.10.
Claim 5
Dependent Claim
25 words
4 A detergent composition as claimed in claim 1, characterised in that the zeolite MAP has a silicon to aluminium ratio not greater than 1.07.
Claim 6
Dependent Claim
34 words
5 A detergent composition as claimed in any preceding claim, characterised in that the weight ratio of zeolite MAP (a) (anhydrous basis) to polymer (b) is within the range of from 2:1 to 10:1.
Claim 7
Dependent Claim
28 words
6 A detergent composition as claimed in claim 5, characterised in that the weight ratio of (a) to (b) is within the range of from 4.5:1 to 9.5:1.
Claim 8
Dependent Claim
25 words
7 A detergent composition as claimed in any preceding claim, characterised in that it comprises from 10 to 45 wt% (anhydrous basis) of zeolite MAP.
Claim 9
Dependent Claim
24 words
8 A detergent composition as claimed in any preceding claim, characterised in that it comprises from 2 to 10 wt% of the polymer (b).
Claim 10
Dependent Claim
27 words
9 A detergent composition as claimed in any preceding claim, characterised in that the polycarboxylate polymer is a homo- or copolymer of acrylic acid or maleic acid.
Claim 11
Dependent Claim
19 words
10 A detergent composition as claimed in claim 9, characterised in that the polycarboxylate polymer is an acrylic/maleic copolymer.
Claim 12
Dependent Claim
15 words
11 A detergent composition as claimed in any preceding claim, which is in particulate form.
Claim 13
Dependent Claim
62 words
12 A detergency builder composition comprising: (a) zeolite P having a silicon to aluminium ratio not exceeding 1.33 (hereinafter zeolite MAP), and (b) a polycarboxylate polymer in acid and/or a salt form, but excluding a composition comprising at least 50 wt%-(anhydrous basis) of zeolite MAP, from 15 to 20 wt% of sodium carbonate, and from 2 to 12 wt% of polycarboxylate polymer.
Claim 14
Dependent Claim
62 words
12 A detergency builder composition comprising: (a) zeolite P having a silicon to aluminium ratio not exceeding 1.33 (hereinafter zeolite MAP), and (b) a polycarboxylate polymer in acid and/or a salt form, but excluding a composition comprising at least 50 wt%-(anhydrous basis) of zeolite MAP, from 15 to 20 wt% of sodium carbonate, and from 2 to 12 wt% of polycarboxylate polymer.
Claim 15
Dependent Claim
45 words
13 A method of washing fabrics, which includes the step of bringing the fabrics into contact with an aqueous wash liquor containing a detergent composition as claimed in any one of claims 1 to 11 and/or a detergency builder composition as claimed in claim 12.
Claim 16
Dependent Claim
41 words
14 Use of a polycarboxylate polymer in acid and/or a salt form as a detergency builder in a detergency builder composition or a detergent composition suitable for fabric washing containing zeolite P having a silicon to aluminium ratio not exceeding 1.33.
Claim 17
Dependent Claim
41 words
14 Use of a polycarboxylate polymer in acid and/or a salt form as a detergency builder in a detergency builder composition or a detergent composition suitable for fabric washing containing zeolite P having a silicon to aluminium ratio not exceeding 1.33.
References Cited (Backward Citations)
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