EP0378262A2
Expired / Lapsed
EP
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Liquid detergent composition containing enzyme and enzyme stabilization system
Assignee: Procter and Gamble Co
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Filing: 1990-01-05
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Granted: —
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Expires: 2010-01-05
Abstract
Abstract Stabilization systems for high pH, aqueous liquid detergent compositions containing detergent enzyme and peroxygen bleaches are disclosed. The detergent compositions contain magnesium salts as an enzyme stabilizing system.
Inventors
- 👤 Francesco De Buzzaccarini
- 👤 Christiaan Arthur Jacques Kamiel Thoen
- 👤 Jean-Pol Boutique
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-24 18:17
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/395; C11D3/39; C11D3/3947; C11D3/16; C11D3/38; C11D3/386; C11D3/38663
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
43 words
An aqueous liquid detergent composition having a pH of at least 8.5, containing an organic surfactant, a peroxygen compound, a detergent enzyme, characterized in that it further contains, as an enzyme stabilizing system, from 10 ppm to 10 000 ppm of magnesium ions.
Claim 2
Dependent Claim
43 words
An aqueous liquid detergent composition having a pH of at least 8.5, containing an organic surfactant, a peroxygen compound, a detergent enzyme, characterized in that it further contains, as an enzyme stabilizing system, from 10 ppm to 10 000 ppm of magnesium ions.
Claim 3
Dependent Claim
24 words
An aqueous liquid detergent composition according to claim 1, characterized in that it contains from 100 ppm to 4 000 ppm of magnesium ions.
Claim 4
Dependent Claim
24 words
An aqueous liquid detergent composition according to any of the preceding claims wherein the magnesium ions are incorporated as magnesium acetate or magnesium chloride.
Claim 5
Dependent Claim
20 words
An aqueous liquid detergent composition according to claim 1, wherein the pH is at least 9.0, preferably at least 9.5.
Claim 6
Dependent Claim
16 words
An aqueous liquid detergent composition according to claim 1 wherein the peroxygen compound is a perborate.
Claim 7
Dependent Claim
16 words
An aqueous liquid detergent composition according to claim 1, wherein the peroxygen compound is a percarborate.
Claim 8
Dependent Claim
41 words
An aqueous liquid detergent composition according to claim 5, comprising a water miscible organic solvent such that the perborate compound is present as a dispersion of solid particles and the amount of available oxygen in solution is less than 0.5 %.
Claim 9
Dependent Claim
34 words
An aqueous liquid detergent composition according to anyone of the preceding claims wherein the detergent enzyme is selected from the groups consisting of detergent proteases, detergent amylases, detergent lipases, detergent cellulases, and mixtures thereof.
Claim 10
Dependent Claim
20 words
An aqueous liquid detergent composition according to claim 8 wherein the detergent enzyme comprises detergent protease, preferably high alkaline protease.
Claim 11
Dependent Claim
21 words
An aqueous liquid detergent composition according to any one of the preceding claims characterized in that it further contains a chelant.
References Cited (Backward Citations)
No citation records indexed.
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