Patent ID: 6914041

Claim:
A laundry detergent composition comprising: a) from about 0.01% to about 20% by weight, of a zwitterionic polyamine having the formula: wherein R units have the formula —(R 2 O) w R 3 — wherein R 2 and R 3 are each independently selected from the group consisting of C 2 -C 8 linear alkylene, C 3 -C 8 branched alkylene, phenylene, substituted phenylene, and mixtures thereof; w is from 0 to about 25; Y is a mixture of at least one C 1 -C 4 linear alkyl, and at least one of an anionic unit selected from the group consisting of —(CH 2 ) f CO 2 M, —C(O)(CH 2 ) f CO 2 M, —(CH 2 ) f PO 3 M, —(CH 2 ) f OPO 3 M, —(CH 2 ) f SO 3 M, —CH 2 (CHSO 3 M)(CH 2 ) f SO 3 M, —CH 2 (CHSO 2 M)(CH 2 ) f SO 3 M; M is hydrogen, a water soluble cation, and mixtures thereof; the index f is from 0 to about 10; Q is a quaternizing unit selected from the group consisting of C 1 -C 4 linear alkyl, C 1 -C 4 hydroxyalkyl, benzyl, (R 2 O) t Y, and mixtures thereof; the index m is from 0 to 20; the index t is from about 0.5 to about 100; b) from about 0.01% to about 80% by weight, of a surfactant system comprising one or more mid-chain branched surfactants selected from the group consisting of mid-chain branched alkyl sulfates, mid-chain branched alkoxy sulfates, mid-chain branched aryl sulfonates, and mixtures thereof: c) optionally from about 0.01% to about 60% by weight, of one or more non-mid chain branched surfactants selected from the group consisting of anionic, nonionic, cationic, zwitterionic, ampholycic surfactants, and mixtures thereof; and d) the balance carriers and adjunct ingredients.