| abstract |
The invention relates to novel alkali-swellable thickening emulsions containing no surfactants or solvents other than water, thereby avoiding all of the inconveniences associated with the use of solvents or with the formation of foam in the case of surfactants. Said novel emulsions contain a certain amount of 2- acrylamido-2-methylpropanesulfonic acid (or AMPS, CAS number: 40623-75-4). These emulsions are proven to be effective for the thickening of aqueous media, such as aqueous paints, paper coating slips, aqueous suspensions of mineral materials, detergents, cosmetic formulations or formulations containing a hydraulic binder. |