Patent ID: 8163688
Filing Date: 2012-04-24
Classification: C11D,D06L

Abstract:
1. A storage-stable aqueous fluorescent whitener formulation consisting essentially of (a) 10%-60% by weight, based on the total weight of the whitener formulation, of at least wherein R X X M is hydrogen or a cation selected from the group consisting of Li, Na, K, Ca, Mg, ammonium, mono-, di, tri or tetra C (b) 0.01-1% by weight, based on the total weight of the whitener formulation, of at least one anionic polysaccharide, (c) 0-25% by weight, based on the total weight of the whitener formulation, of at least one electrolyte, (d) 0-20% by weight, based on the total weight of the whitener formulation, of at least one dispersant, (e) 0-30% by weight, based on the total weight of the whitener formulation, of at least one further fluorescent whitener, (f) 0-20% by weight, based on the total weight of the whitener formulation, of at least one further optional component, and (g) water to make up 100% by weight.