Patent ID: 6277811
Filing Date: 2001-08-21
Classification: C11D

Abstract:
A detergent composition suitable for use in hand dishwashing, said composition comprising:a) an effective amount of a zwitterionic polymeric suds stabilizer;b) an effective amount of a detersive surfactant, andc) the balance carriers and other adjunct ingredients;provided the pH of a 10% aqueous solution of said composition is from about 4 to about 12;wherein said zwitterionic polymeric suds stabilizer has the formula: ##STR24##wherein R is C.sub.1 -C.sub.12 linear alkylene, C.sub.1 -C.sub.12 branched alkylene, and mixtures thereof; R.sup.1 is a unit capable of having a negative charge at a pH of from about 4 to about 12; R.sup.2 is a unit capable of having a positive charge at a pH of from about 4 to about 12; n has a value such that said zwitterionic polymers suds stabilizer has an average molecular weight of from about 1,000 to about 2,000,000 daltons; x is from 0 to 6; y is 0 or 1; and z is 0 or 1;wherein R.sup.1 has the formula:--(L).sub.i --(S).sub.j --R.sup.3wherein L is a linking unit independently selected from the following: ##STR25##and mixtures thereof; S can form a heterocycle of 4 to 7 carbon atoms, optionally containing other hetero atoms and optionally substituted; R.sup.3 is independently selected from --CO.sub.2 M, --SO.sub.3 M, --OSO.sub.3 M, --CH.sub.2 P(O)(OM).sub.2, --OP(O)(OM).sub.2, units having the formula:--CR.sup.8 R.sup.9 R.sup.10wherein each R.sup.8, R.sup.9, and R.sup.10 is independently selected from the group consisting of hydrogen, --(CH.sub.2).sub.m R.sup.11, and mixtures thereof, wherein R.sup.11 is --CO.sub.2 H, --SO.sub.3 M, --OSO.sub.3 M, --CH(CO.sub.2 H)CH.sub.2 CO.sub.2 H, --CH.sub.2 P(O)(OH).sub.2, --OP(O)(OH).sub.2, and mixtures thereof; provided that one R.sup.8, R.sup.9, or R.sup.10 is not a hydrogen atom; R.sup.2 has the formula:--(L.sup.1).sub.i' --(S).sub.j' --R.sup.4wherein L.sup.1 is a linking unit independently selected from the following: ##STR26##and mixtures thereof; wherein S can form a heterocycle of 4 to 7 carbon atoms, optionally containing other hetero atoms and optionally substituted; R.sup.4 is independently selected from amino, alkylamino carboxamide, 3-imidazolyl, 4-imidazolyl, 2-imidazolinyl, 4-imidazolinyl, 2-piperidinyl, 3-piperidinyl, 4-piperidinyl, 1-pyrazolyl, 3-pyrazoyl, 4-pyrazoyl, 5-pyrazoyl, 1-pyrazolinyl, 3-pyrazolinyl, 4-pyrazolinyl, 5-pyrazolinyl, 2-pyridinyl, 3-pyridinyl, 4-pyridinyl, piperazinyl, 2-pyrrolidinyl, 3-pyrrolidinyl, guanidino, amidino, and mixtures thereof; each S is independently selected from C.sub.1 -C.sub.12 linear alkylene, C.sub.1 -C.sub.12 branched alkylene, C.sub.3 -C.sub.12 linear alkenylene, C.sub.3 -C.sub.12 branched alkenylene, C.sub.3 -C.sub.12 hydroxyalkylene, C.sub.4 -C.sub.12 dihydioxyalkylene, C.sub.6 -C.sub.10 arylene, C.sub.8 -C.sub.12 dialkylarylene, --(R.sup.5 O).sub.k R.sup.5 --, --(R.sup.5 O).sub.k R.sup.6 (OR.sup.5).sub.k --, --CH.sub.2 CH(OR.sup.7)CH.sub.2 --, and mixtures thereof; R.sup.5 is C.sub.2 -C.sub.4 linear alkylene, C.sub.3 -C.sub.4 branched alkylene, and mixtures thereof; R.sup.6 is C.sub.2 -C.sub.12 linear alkylene, and mixtures thereof; R.sup.7 is hydrogen, C.sub.1 -C.sub.4 alkyl, and mixtures thereof; M is hydrogen or a water soluble cation; i is 0 or 1; i' is 0 or 1; j is 0 or 1; j' is 0 or 1; k is from 1 to 20; and m is from 0 to 10.