摘要 |
PROBLEM TO BE SOLVED: To provide an acrylic or a methacrylic acid-based copolymer useful for a detergent composition efficiently removing soil of clothes, etc., especially hydrophobic soil such as collar dirt or oil and fat dirt without re-depositing the soil on the laundry even when washing is carried out with a small amount of water and having an excellent re-deposition preventing ability. SOLUTION: The acrylic or methacrylic acid-based copolymer comprises≥70 to <95 mol% of an acrylic or a methacrylic acid-based monomer (a),≥5 to <30 mol% of a sulfonic acid group-containing monomer (b), >0 to≤50 mol% of an alkyl (meth)acrylate-based monomer (c) and/or a vinyl aromatic monomer (d) [with the proviso that the sum total of the composition of a constituent units (a), (b), (c) and (d) is 100 mol%] as essential constituent units. COPYRIGHT: (C)2007,JPO&INPIT |