(POLY)ALKYLENE GLYCOL-CONTAINING COMPOUND

The present invention provides a (poly)alkylene glycol-containing compound that has more excellent detergency for a combined stain in which a hydrophilic stain and a hydrophobic stain are combined, as compared with conventional (poly)alkylene glycol-containing compounds. The present invention is a (poly)alkylene glycol-containing compound characterized by having a hydrophobic structural moiety (A) and a (poly)alkylene glycol moiety (B) and further having at least two lactam ring-containing structural units (C) in a structure of the (poly)alkylene glycol-containing compound, wherein the content proportion of the hydrophobic structural moiety (A) is 2.5-60 mass% with respect to 100 mass% of the (poly)alkylene glycol-containing compound, and the hydrophobic structural moiety (A) is derived from at least one compound selected from the group consisting of acyclic hydrocarbon compounds each having 1-50 carbon atoms and optionally having a heteroatom, cyclic saturated hydrocarbon compounds each having 3-50 carbon atoms and optionally having a heteroatom, heterocyclic compounds each having 1-50 carbon atoms, and aromatic compounds each having 6-50 carbon atoms and optionally having a heteroatom, when the hydrophobic structural moiety (A) is located at a terminal of the (poly)alkylene glycol-containing compound, the structure derived from the aromatic compound having 6-50 carbon atoms is a group represented by formula (1): -R1-A1 (1) (in the formula, R1 represents an alkylene group having 1-30 carbon atoms and optionally having a direct bond or a heteroatom, and A1 represents an aromatic group having 6-42 carbon atoms and having no substituent). L'invention fournit un composé comprenant un (poly)alkylèneglycol d'une meilleure détergence vis-à-vis de salissures combinées combinant des salissures hydrophiles et hydrophobes que les composés comprenant un (poly)alkylèneglycol de l'art antérieur. Plus précisément, l'invention concerne un composé comprenant un (poly)alkylèneglycol qui est caractérisitique en ce qu'il possède une unité structurale (A) hydrophobe et une unité (poly)alkylèneglycol (B), et possède en outre au moins deux unités structurales (C) comprenant un cycle lactame dans sa structure. La teneur en unité structurale (A) hydrophobe est comprise entre 2,5 et 60% en masse pour 100% en masse du composé comprenant un (poly)alkylèneglycol. L'unité structurale (A) hydrophobe consiste en une unité structurale dérivée d'au moins une sorte de composé choisie dans