Patent ID: 8383573

Claim:
A cleaning composition comprising a dispersant polymer comprising a randomly substituted linear or branched polymer backbone having a structure: wherein the randomly substituted polymer backbone comprises the residues of at least one unsubstituted monomer and at least one substituted monomer, wherein the residues of the monomers are independently selected from the group consisting of furanose residues, 1-4 alpha-D glucopyranose residues, 1-6 alpha-D glucopyranose residues, and mixtures thereof, and the residue of the substituted monomer further comprises —(R) p substituent groups, such that each R substituent is independently selected from the group consisting of a nitrogen containing substituent with a degree of substitution ranging from 0.01 to 0.4, and an anionic substituent with a degree of substitution of ranging from 0.1 to 3.0, p is an integer from 1 to 3, and wherein the ratio of the degree of substitution of the nitrogen containing substituent to the degree of substitution of the anionic substituent ranges from 0.05:1 to 0.4:1, and wherein the dispersant polymer has a weight average molecular weight ranging from 1,000 Daltons to 1,000,000 Daltons.