Biobased dispersants for laundry cleaning applications
AssigneeBorregaard AS
InventorRoss Johannes Ellis
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Abstract
The present invention relates to the use of lignin derivatives, having a specific combination of degree of sulfonation and degree of oxidation, as an additive in a laundry detergent composition. Further, the present invention relates to a laundry detergent composition comprising the lignin derivative and to a laundry cleaning method.
Claims20
An additive for a laundry detergent composition, the additive comprising a sulfonated lignin derivative characterized in that the sulfonated lignin derivative has an amount of organic sulfur which is associated with sulfonate groups attached to lignin of at least 4.5% w/w, as measured in dry solid relative to overall dry solids weight of the sulfonated lignin derivative, and a carboxylate content of at least 6% w/w, as measured in the dry solid, relative to the overall dry solids weight of the sulfonated lignin derivative.
Dependencies are inferred from the claim text.