Aqueous concentrate of an associative thickening polymer, and use of a nonionic surfactant for reducing the viscosity of the concentrate

摘要: The present invention relates to an aqueous concentrate of associative thickening polymer, the containing a nonionic surfactant as viscosity-reducing agent. is water-soluble and has formula (I), wherein R alkyl group having 6-12 carbon atoms AO ethyleneoxy or propyleneoxy group, ratio groups total number being from 1:2 5:6, between 7 16. presence small amount results in surprisingly great reduction viscosity, which permits formulation concentrates high percentages polymer without negatively affecting properties when used for purposes.