Patent ID: 8450262

Claim:
A laundry detergent or cleaning composition which comprises a hydrophobic group-containing copolymer characterized by having 1 wt % or more but below 50 wt % of a structural unit (a) derived from at least one kind of monomer (A) selected from ether bond-containing monomers represented by the following formulas (1) and (2); in the above formula (1), R 0 is a hydrogen atom or CH 3 group, R is a CH 2 group, CH 2 CH 2 group or single bond, X is a number in the range of 0-5 (provided X is a number in the range of 1-5 if R is a single bond), and R 1 is an organic group having 6-16 carbon atoms; in the above general formula (2), R 0 is a hydrogen atom or CH 3 group, R is a CH 2 group, CH 2 CH 2 group or single bond, X is a number in the range of 0-5, and R 1 is a hydrogen atom or organic group having 1-20 carbon atoms; and 50 wt % or more but 99 wt % or less of a structural unit (b) derived from a carboxyl group-containing monomer (B) as an essential constituting unit, wherein the carboxyl group-containing monomer (B) is acrylic acid or an acrylate salt.