Patent ID: 8058223

Claim:
A low-foaming liquid machine dishwashing detergent composition comprising: from about 0.01% to about 20% by active weight of at least one surfactant of general Formula 1 comprising: wherein n is an integer from 1-30, or mixtures thereof; one of X and Y is SO 3 â€”Z, the other of X and Y is H (i.e. hydrogen), and X and Y are independently assigned in each repeating unit; A 1 and A 2 are linear or branched, saturated or unsaturated, substituted or un-substituted, alkyl diradicals wherein the total number of carbons for each repeating unit is independent and in the range of C 8 to C 22 ; a is 0, 1, or 2, and is independently assigned in each repeating unit; R is linear or branched, saturated or unsaturated, substituted or unsubstituted, wherein the total number of carbon atoms is from 1 to 24; W is H (i.e., hydrogen) or a monovalent or divalent metal cation, ammonium cation or substituted ammonium cation, or an alkyl or substituted alkyl group; Z is H (i.e., hydrogen) or a monovalent or divalent metal cation, ammonium or substituted ammonium cation; and from about 0.01% to about 10% by active weight of at least one enzyme; at least one corrosion protecting agent; and wherein the low-foaming liquid machine dishwashing detergent composition has a pH from about 9 to about 14.