Concentrated liquid detergent composition
AssigneeUnilever Home & Personal Care USA, Division of Conopco, Inc.
InventorsWillem Robert Van Dijk, Theresia Maria Olsthoorn, Marja Ouwendijk, Johannes Cornelis van de Pas
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Abstract
A physically stable, concentrated isotropic liquid detergent composition comprises (a) from 10 to 70% of an anionic, nonionic, cationic, zwitterionic active detergent material or mixtures thereof, (b) from 0.0001 to 10% of protease; (c) from 2 to 40% of at least one carbohydrate selected from oligosaccharides, polysaccharides and derivatives thereof, wherein n=1-5, and (d) less than 3% of an antioxidant selected from the group consisting of alkalimetalsulphites, alkalimetalbisulphites, alkalimetabisulphites or alkalimetalthiosulphates.
Claims13
A physically stable, concentrated isotropic liquid detergent composition comprising
- (a) from 10 to 70% of an anionic, nonionic, cationic, zwitterionic active detergent material or mixtures thereof;
- (b) from 0.0001 to 10% of protease;
- (c) from 2 to 40% of at least one carbohydrate selected from the group consisting of oligosaccharides, polysaccharides and derivatives thereof;
- and
- (d) less than 3% of an antioxidant selected from the group consisting of alkalimetalsulphites, alkalimetalbisulphites, and alkalimetalthiosulphates.
A method for the stabilisation of protease in a physically stable concentrated isotropic liquid detergent composition, the method comprising the steps of
- (I) formulating said composition comprising
- (a) from 10 to 70% of an anionic, nonionic, cationic, zwitterionic active detergent material or mixtures thereof,
- (b) from 0.0001% to 10% of protease;
- and
- (c) less than 3% of an antioxidant selected from the group consisting of alkalimetalsulphites, alkalimetalbisulphites, and alkalimetalthiosulphates, and
- (II) adding 2 to 40% of at least one carbohydrate selected from the group consisting of oligosaccharides, polysaccharides and derivatives thereof, to the composition prepared in step (I).
Dependencies are inferred from the claim text.