Patent ID: 6391839
Filing Date: 2002-05-21
Classification: C11D

Abstract:
A laundry detergent composition comprising:(a) from 7% to 20% by weight of a crystalline layered silicate builder material of formula LMSixO2x+1.yH2O wherein L is an alkali metal, and M is sodium or hydrogen, x is a number from 1.9 to 4 and y is a number from 0 to 20; (b) from 3% to 40% by weight of an alkali metal percarbonate bleach; (c) from 0.05% to 10% by weight of a compound selected from the group consisting of ethylenediamine-N,Nâ€²-disuccinic acid, alkali metal, alkaline earth metal, ammonium, substituted ammonium salts thereof, or mixtures thereof; and (d) from 3% to 30% by weight of an anionic surfactant comprising a mixture of a C13-C20 alkyl sulfate salt with a water soluble C11-C19 alkyl ethoxysulfate salt containing an average of from 1 to 7 ethoxy groups per mole wherein the weight ratio of said alkyl sulfate salt to said alkyl ethoxysulfate salt lies in the range from 2:1 to 19:1.