Enzymatic detergent composition
AssigneeLever Brothers Company, Division of Conopco, Inc.
InventorJan Klugkist
Life of this patent
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Abstract
A detergent composition comprising an anionic surfactant, a nonionic surfactant and a lipase enzyme, characterised in that: (a) the nonionic surfactant of the composition comprises a nonionic surfactant component selected from alkoxylate adducts of fatty alcohols, fatty acids, fatty esters, fatty amides and fatty amines of at least C.sub.10 chain length and mean alkylene oxide content of less than 5 alkylene oxide groups per molecule, forming at least 30% by weight of the total nonionic surfactant of the composition; and in that (b) the total amount of the nonionic and anionic surfactant in the composition is in the range 1% to 30% by weight; and (c) the lipase enzyme is present in an amount of about 0.005 to 100 Lu/mg based on the weight of the detergent composition.
Claims7
A detergent composition comprising an anionic surfactant, a nonionic surfactant and a lipase produced by cloning the gene from Humicola lanuginosa and expressing the gene in Aspergillus oryzae characterized in that:
- (a) the nonionic surfactant of the composition comprises a nonionic surfactant component selected from alkoxylate adducts of fatty alcohols, fatty acids, fatty esters, fatty amides and fatty amines of at least C.sub.10 chain length and mean alkylene oxide content of less than 5 alkylene oxide groups per molecule;
- (b) said nonionic surfactant component forms at least 30% by weight of the total nonionic surfactant of the composition;
- (c) said nonionic surfactant component forms less than 50% by weight of the sum of the nonionic surfactant component and the anionic surfactant;
- (d) the total amount of the nonionic surfactant and anionic surfactant in the composition is in the range of 1% to 30% by weight;
- and
- (e) the lipase enzyme is present in an amount of about 0.005 to 100 Lu/mg based on the weight of the detergent composition.
Dependencies are inferred from the claim text.