Patent ID: 6534474
Filing Date: 2003-03-18
Classification: C11D

Abstract:
A surfactant composition which is capable of being formulated for use in a non-liquid detergent composition by mixing the surfactant composition with a powder material, said surfactant composition comprising:a) a nonionic surfactant having a melting point of 30Â° C. or less; b) an anionic surfactant having sulfonate group; and c) an immobilization agent for said a) component, â€ƒwherein said b) component is formulated in an amount of from 0 to 300 parts by weight, based on 100 parts by weight of said a) component, and wherein said c) component is formulated in an amount of from 1 to 100 parts by weight, based on 100 parts by weight of said a) component, â€ƒwherein said c) component comprises: c-1) an anionic surfactant having carboxylate group or phosphate group excluding anionic surfactants having sulfonate group; and c-2) one or more compounds selected from the group consisting of polyoxyalkylene-based nonionic compounds and polyether-based nonionic compounds, each having a melting point of 35Â° C. or more, and â€ƒwherein non-neutralized components of surfactants are contained in an amount of 10% by weight or less of the surfactant composition, and wherein the surfactant composition has: (1) a temperature range that a viscosity of the composition is 10 PaÂ·s or less at a temperature equal to or higher than a pour point of the surfactant composition; and (2) a temperature range that a penetrating hardness of the composition is 100 g/cm2 or more in a temperature range between a temperature lower than the pour point of the composition and a temperature higher than the melting point of said a) component.