Liquid detergent compositions comprising polymeric suds enhancers

A method for providing extended suds volume and suds duration when dishware in need of cleaning is washed, comprising the step of contacting said dishware with an aqueous solution of a liquid detergent comprising:

• a) an effective amount of a polymeric suds stabilizer, said stabilizer comprising:
• i) units capable of having a cationic charge at a pH of from about 4 to about 12;
• provided that said suds stabilizer has an average cationic charge density of at least about 1 units per 100 daltons molecular weight at a pH of from about 4 to about 12;
• b) an effective amount of a detersive surfactant;
• and
• c) the balance carriers and other adjunct ingredients;
• provided that a 10% aqueous solution of said detergent composition has a pH of from about 4 to about 12;
• wherein said polymeric suds stabilizer (a) is a polymer comprising
• 1) at least one monomeric unit of the formula:
• wherein each of R1, R2 and R3 are independently selected from the group consisting of hydrogen, C1 to C6 alkyl, and mixtures thereof;
• L is a bond and/or O;
• Z is selected from the group consisting of:
• —(CH2)—, (CH2—CH═CH)—, —(CH2—CHOH)— and mixtures thereof;
• z is an integer selected from about 0 to about 12;
• and A is NR4R5, wherein each of R4 and R5 are independently selected from the group consisting of hydrogen, C1-C8 linear or branched alkyl;
• and
• 3) at least one monomeric unit of the formula:
• wherein R1 is hereinbefore defined, L is a bond and/or O and B is selected from the group consisting of hydrogen, C1 to C8 hydrocarbyl, NR4R5, and mixtures thereof;
• wherein each of R4 and R5 are independently selected from the group consisting of hydrogen, C1 to C8 alkyl, and mixtures thereof, wherein ratio of (1) to (2) is from about 99:1 to about 1:10 and wherein said composition further comprises about 0.25% to about 15% of a diamine having a molecular weight less than or equal to 400 g/mol.