EP0070191A1
Expired / Lapsed
EP
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Detergent additives and detergent compositions containing them
Assignee: Unilever PLC
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Filing: 1982-07-13
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Granted: —
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Expires: 2002-07-13
Abstract
Abstract A detergent composition contains as builder a combination of an aluminosilicate cation-exchange material, for example, Zeolite A, with an organic precipitant builder having the formula I wherein: R, is C 10 -C 24 alkyl or alkenyl, or an arylalkyl or alkylaryl group of equivalent chain length; X is CH, CR 2 , N or CON; R 2 is C 1 -C 3 alkyl; Y is hydrogen or a solubilising cation: n and m, which may be the same or different, are 0 or integers from 1 to 4; and Z is COOY or S0 3 Y. Preferred organic precipitant builders are the alkyl or alkenyl malonates and succinates. The inorganic phosphate content is desirably less than 10% by weight, and zero- phosphate compositions are preferred.
Inventors
- 👤 Reginald Vear Scowen
- 👤 Thomas Stirling
- 👤 Gordon Joseph Welch
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-06 18:10
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/16; C11D3/20; C11D3/2075; C11D3/02; C11D3/12; C11D3/124; C11D3/1246; C11D3/128; C11D3/26; C11D3/33
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
177 words
A detergent composition characterised in that it comprises: (a) from 3 to 90% by weight of one or more detergent-active agents, and (b) from 10 to 97% by weight of a detergent additive consisting essentially of (i) from 25 to 97% by weight, based on the detergent additive, of a crystalline or amorphous aluminosilicate cation-exchange material, and (ii) from 3% to 75% by weight of an organic precipitant builder having the formula I wherein: R 1 is C 10 -C 24 alkyl or alkenyl, or an arylalkyl or alkylaryl group of equivalent chain length; X is CH, CR 2 , N or CON; R 2 is C 1 -C 3 alkyl; Y is hydrogen or a solubilising cation: n and m, which may be the same or different, are O or integers from 1 to 4; and Z is COOY or S0 3 Y. with the proviso that if the organic precipitant builder is a C 6 to C 20 α-sulphocarboxylic acid and the aluminosilicate material is crystalline, the composition contains less than 5% of inorganic phosphate.
Claim 2
Dependent Claim
177 words
A detergent composition characterised in that it comprises: (a) from 3 to 90% by weight of one or more detergent-active agents, and (b) from 10 to 97% by weight of a detergent additive consisting essentially of (i) from 25 to 97% by weight, based on the detergent additive, of a crystalline or amorphous aluminosilicate cation-exchange material, and (ii) from 3% to 75% by weight of an organic precipitant builder having the formula I wherein: R 1 is C 10 -C 24 alkyl or alkenyl, or an arylalkyl or alkylaryl group of equivalent chain length; X is CH, CR 2 , N or CON; R 2 is C 1 -C 3 alkyl; Y is hydrogen or a solubilising cation: n and m, which may be the same or different, are O or integers from 1 to 4; and Z is COOY or S0 3 Y. with the proviso that if the organic precipitant builder is a C 6 to C 20 α-sulphocarboxylic acid and the aluminosilicate material is crystalline, the composition contains less than 5% of inorganic phosphate.
Claim 3
Dependent Claim
42 words
A detergent composition as claimed in Claim 1, characterised in that the organic precipitant builder is a compound of the formula II wherein R 1 , Y and Z have the meanings given in Claim 1, and p is O or 1.
Claim 4
Dependent Claim
34 words
A detergent composition as claimed in Claim 2, characterised in that the organic precipitant builder is a compound of the formula III wherein R 1 and Y have the meanings given in Claim 1.
Claim 5
Dependent Claim
34 words
A detergent composition as claimed in Claim 2, characterised in that the organic precipitant builder is a compound of the formula IV wherein R 1 and Y have the meanings given in Claim 1.
Claim 6
Dependent Claim
49 words
A detergent composition as claimed in Claim 1, characterised in that the organic precipitant builder is a compound of the formula V wherein R 1 and Y have the meanings given in Claim 1 and v and w are each integers within the range of from 1 to 4.
Claim 7
Dependent Claim
45 words
A detergent composition as claimed in Claim 1, characterised in that the organic precipitant builder is a compound of the formula VI wherein R 1 and Y have the meanings given in Claim 1 and v and w have the meanings given in Claim 5.
Claim 8
Dependent Claim
39 words
A detergent composition as claimed in Claim 5 or Claim 6, characterised in that the organic precipitant builder is a compound of the formula V or of the formula VI, wherein v and w are each 1 or 2.
Claim 9
Dependent Claim
32 words
A detergent composition as claimed in any one of Claims 1 to 7, characterised in that the organic precipitant builder has a calcium salt solubility product of less than 1 0-8 .
Claim 10
Dependent Claim
79 words
A detergent composition as claimed in any one of Claims 1 to 9, characterised in that the aluminosilicate cation exchange material is a crystalline or amorphous material having the general formula VII wherein Cat is a cation having valency n that is exchangeable with calcium (e.g. Na or K + ); x is a number from 0.7-1.5; y is a number from 1.3-4; and z is such that the bound water content is from 10% to 28% by weight.
Claim 11
Dependent Claim
68 words
A detergent composition as claimed in Claim 9, characterised in that the aluminosilicate cation exchange material is a crystalline material having a unit cell of the formula VIII wherein x and y are integers of at least 6, the ratio of x to y being in the range of 1:1 to 1:2; and z is such that the bound water content is from 10% to 28% by weight.
Claim 12
Dependent Claim
35 words
A detergent composition as claimed in Claim 10, characterised in that the aluminosilicate cation exchange material is a crystalline material having a unit cell of the formula IX wherein z is from 20 to 30.
Claim 13
Dependent Claim
26 words
A detergent composition as claimed in Claim 11, characterised in that the aluminosilicate material has a unit cell of the formula IX wherein z is 27.
Claim 14
Dependent Claim
28 words
A detergent composition as claimed in Claim 14, characterised in that the aluminosilicate cation-exchange material has a particle size within the range of from 0.1 to 10 µm.
Claim 15
Dependent Claim
37 words
A detergent composition as claimed in any one of Claims 1 to 13, characterised in that the aluminosilicate cation-exchange material has an ion exchange capacity of at least 200 mg CaC0 3 per gram of anhydrous aluminosilicate.
Claim 16
Dependent Claim
26 words
A detergent composition as claimed in any one of Claims 1 to 14, characterised in that it contains less than 5% by weight of inorganic phosphate.
Claim 17
Dependent Claim
28 words
A detergent composition as claimed in any one of Claims 1 to 15, characterised in that it contains from 15 to 70% by weight of the detergent additive.
Claim 18
Dependent Claim
28 words
A detergent composition as claimed in any one of Claims 1 to 16, characterised in that it contains from 10 to 60% by weight of aluminosilicate cation-exchange material.
Claim 19
Dependent Claim
27 words
A detergent composition as claimed in any one of Claims 1 to 17, characterised in that it contains from 1 to 30% of the organic precipitant builder.
Claim 20
Dependent Claim
82 words
A detergent additive for use in a detergent composition as claimed in any one of Claims 1 to 18, characterised in that it consists essentially of (i) from 25 to 97% by weight of a crystalline or amorphous aluminosilicate cation-exchange material, and (ii) from 3 to 75% by weight of an organic precipitant builder having a polyvalent anion, with the proviso that when the aluminosilicate material (i) is crystalline, the organic precipitant builder is not a water-soluble salt of a C6-C20o[-sulphocarboxylic acid.
References Cited (Backward Citations)
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