| abstract |
(57) [Summary] A part or all of H of a hydroxyl group of a polysaccharide or a derivative thereof has the following groups (1) and (2): [B is a C1-6 optionally substituted by a single bond or a hydroxyl group; A is O or carbonyl group, R is C 4-43 alkyl groups, n represents 0 or 1, and M 1 and M 2 represent H or a monovalent cation. H of the hydroxyl group in the group (1) and M 1 and M 2 in the group (2) may be further substituted with another group (1) or (2). ] The novel polysaccharide derivative substituted by the above. [Effect] Gives a highly transparent aqueous solution, shows an excellent thickening effect with a small amount of addition, has little viscosity change due to coexistence of salts and temperature, has excellent dispersion stabilizing effect, cosmetics, toiletry products, hair care Thickeners for products, building materials, pharmaceuticals, etc. Useful as gelling agents, excipients, emulsion stabilizers, flocculants and the like. |