Patent ID: 8586523

Claim:
A laundry detergent or cleaning composition which comprises a surfactant system and a copolymer containing sulfonate groups comprising from 1 to 50 mass percent of structural units (a) derived from 1 or more kinds of monomers (A) selected from ether bond-containing monomers represented by Formulas (1) or (2) below, in Formula (1) above, Ro represents a hydrogen atom or CH 3 group, R represents a CH 2 group, CH 2 CH 2 group or single bond, X represents a number 0-5 (provided X represents a number 1-5 when R is a single bond), and R 1 is a hydrogen atom or 1- to 20-carbon organic group, in Formula (2) above, Ro represents a hydrogen atom or CH 3 group, R represents a CH 2 group, CH 2 CH 2 group or single bond, X represents a number 0-5, and R 1 is a hydrogen atom or 1- to 20-carbon organic group, 50 mass % or more and less than 98 mass % of structural units (b) derived from carboxyl group-containing monomers (B), wherein the carboxyl group-containing monomer (B) is acrylic acid or an acrylate salt, and 1 mass % or more and less than 50 mass % of structural units (c) derived from sulfonate group-containing monomers (C) as requisite constituent units.