| 摘要 |
<p>A thickened aqueous composition comprising at least one compound acid or acidic salt, a thickening agent which is at least one of the compounds selected from the group consisting of compounds of the formula: <CHEM> wherein R, R1 R2, R3, R4 and R5 are specified substituent groups, and optionally a strong ionic salt, the thickening agent and the acid or acidic salt being together substantially water soluble, and wherein the thickened aqueous composition has a viscosity of not less than 30 centipoise at 25 DEG C when measured with a Brookfield RVT viscometer at 50 rpm using a No. 1 spindle.</p> |
