Automatic dishwashing detergent composition

An automatic dishwashing detergent composition having a pH as measured in 1% weight aqueous solution at 25° C. of from about 5 to about 7.5, the composition comprises a surface-modification surface-substantive polymer, the polymer comprising in copolymerized form from:

• i. about 60% to about 99% by weight of the polymer of at least one monoethylenically unsaturated polyalkylene oxide monomer of the formula I (monomer (A))
• in which the variables have the following meanings:
• X is —CH2- or —CO—, if Y is —O—;
• X is —CO—, if Y is —NH—;
• Y is —O— or —NH—;
• R1 is hydrogen or methyl;
• R2 are identical or different C2-C6-alkylene radicals;
• R3 is H or C1-C4 alkyl;
• n is an integer from 3 to 100,
• ii. from about 1 to about 40% by weight of the cationic polymer of at least one quaternized nitrogen-containing monomer, selected from the group consisting of at least one of the monomers of the formula IIa to IId (monomer (B))
• in which the variables have the following meanings:
• R is C1-C4 alkyl or benzyl;
• R′ is hydrogen or methyl;
• Y is —O— or —NH—;
• A is C1-C6 alkylene;
• X— is halide, C1-C4-alkyl sulfate, C1-C4-alkylsulfonate and C1-C4-alkyl carbonate.
• iii. from about 0 to about 15% by weight of the cationic polymer of at least one anionic monoethylenically unsaturated monomer (monomer (C)), and
• iv. from about 0 to about 30% by weight of the cationic polymer of at least one other nonionic monoethylenically unsaturated monomer (monomer (D)),
• and the polymer has a weight average molecular weight (Mw) from about 2,000 to about 500,000 200,000 g/mol.