EP0315282A1
Expired / Lapsed
EP
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Zeolites in liquid detergent compositions
Assignee: Unilever PLC
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Filing: 1988-11-03
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Granted: —
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Expires: 2008-11-03
Abstract
Abstract The invention provides a method of using a 4A- and/or P1-type zeolite powder having a particle size distribution so that the d₅₀ is between 0.1 and 1.0 micrometer in a liquid detergent composition. Preferably the d₅₀ is between 0.4 and 0.7 micrometers, more preferred the d₈₀ is below 1 micrometer and the the d₉₀ is below 3 micrometers. The use of P1-type zeolites is preferred. The invention also provides a liquid detergent composition containing a 4A- and/or P1-type zeolite powder having a particle size distribution and in amounts as indicated above.
Inventors
- 👤 Jacob N. P. M. Dekker
- 👤 Theo Jan Osinga
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-06 18:14
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/02; C11D3/12; C11D3/124; C11D3/1246; C11D3/128; C01; C01B; C01B39/00; C01B39/02; C01B39/28; C11D3/1286
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
30 words
A method of using a 4A- and/or P1-type zeolite powder having a particle size distribution so that the d₅₀ is between 0.1 and 1.0 micrometer in a liquid detergent composition.
Claim 2
Independent Claim
30 words
A method of using a 4A- and/or P1-type zeolite powder having a particle size distribution so that the d₅₀ is between 0.1 and 1.0 micrometer in a liquid detergent composition.
Claim 3
Dependent Claim
18 words
A method as claimed in Claim 1, characterized in that the d₅₀ is between 0.4 and 0.7 micrometers.
Claim 4
Dependent Claim
18 words
A method as claimed in Claim 1 or 2, characterized in that the d₈₀ is below 1 micrometer.
Claim 5
Independent Claim
19 words
A method as claimed in any of the Claims 1-3, characterized in that the d₉₀ is below 3 micrometers.
Claim 6
Independent Claim
19 words
A method as claimed in any of the Claims 1-4, characterized in that the zeolite is of the P1-type.
Claim 7
Dependent Claim
34 words
A liquid detergent composition, characterized in that it contains from 1-40% by weight of a 4A- and/or P1-type zeolite powder which has a particle size distribution with a d₅₀ between 0.1 and 1 micrometer.
Claim 8
Dependent Claim
34 words
A liquid detergent composition, characterized in that it contains from 1-40% by weight of a 4A- and/or P1-type zeolite powder which has a particle size distribution with a d₅₀ between 0.1 and 1 micrometer.
Claim 9
Dependent Claim
23 words
A liquid detergent composition as claimed in Claim 6, characterized in that it contains 10 to 30% by weight of the zeolite powder.
Claim 10
Dependent Claim
25 words
A liquid detergent composition as claimed in Claim 6 or 7, characterized in that the zeolite material has a d₅₀ between 0.4 and 0.7 micrometer.
Claim 11
Dependent Claim
25 words
A liquid detergent composition as claimed in Claim 6, 7 or 8, characterized in that the zeolite material also has a d₈₀ below 1 micrometer.
Claim 12
Dependent Claim
25 words
A liquid detergent composition as claimed in any of the Claim 6 to 9, characterized in that a zeolite powder of the P1-type is used.
References Cited (Backward Citations)
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