Phosphate-free polymer detergent composition

A phosphate-free detergent composition comprising:

• at least one non-sulfonated water-soluble copolymer chosen from:
• (i) a non-sulfonated water-soluble copolymer prepared by polymerization reaction:
• a) of 55 mol % to 93 mol % of at least one acid chosen from acrylic acid and methacrylic acid, mixtures thereof and salts thereof,
• b) of 2 mol % to 25 mol % of at least one ester of a compound derived from an acid chosen from acrylic acid, methacrylic acid, itaconic acid and maleic acid, and
• c) of 5 mol % to 20 mol % of at least one compound of formula (I):
• wherein:
• R1 represents H or CH3,
• R2 represents H,
• L1 independently represents a group chosen from C(O), CH2, CH2—CH2 and O—CH2CH2—CH2—CH2,
• L2 independently represents a group chosen from (CH2-CH2O)x, (CH2CH(CH3)O)y, (CH(CH3)CH2O)z and combinations thereof, and
• x, y and z, which may be identical or different, independently represent an integer or decimal number between 0 and 150, x is strictly greater than y+z and the sum x+y+z is between 10 and 150, and
• (ii) a non-sulfonated water-soluble copolymer prepared by polymerization reaction:
• a) of 55% to 93% by weight of at least one acid chosen from acrylic acid and methacrylic acid, mixtures thereof and salts thereof,
• b) of 2% to 25% by weight of at least one ester of a compound derived from an acid chosen from acrylic acid, methacrylic acid, itaconic acid and maleic acid, and
• c) of 5% to 20% by weight of at least one compound of formula (I):
• wherein:
• R1 represents H or CH3,
• R2 represents H,
• L1 independently represents a group chosen from C(O), CH2, CH2—CH2 and O—CH2CH2—CH2—CH2,
• L2 independently represents a group chosen from (CH2—CH2O)x, (CH2CH(CH3)O)y, (CH(CH3)CH2O)z and combinations thereof, and
• x, y and z, which may be identical or different, independently represent an integer or decimal number between 0 and 150, x is strictly greater than y+z and the sum x+y+z is between 10 and 150;
• and
• at least one non-sulfonated nonionic surfactant compound.