The use of crosslinked copolymers obtainable by precipitation
polymerization of monomer mixtures comprising
(a) monoethylenically unsaturated C.sub.3 -C.sub.8 -carboxylic acids, their
anhydrides or mixtures of said carboxylic acids and anhydrides,
(b) compounds with at least 2 non-conjugated ethylenic double bonds in the
molecule as crosslinkers and, where appropriate,
(c) other monoethylenically unsaturated monomers which are copolymerizable
with monomers (a) and (b),
in the presence of free-radical polymerization initiators and from 0.1 to
20% by weight, based on the monomers used, of saturated, nonionic
surface-active compounds, as stabilizer in oil-in-water emulsions in
amounts of from 0.01 to 5% of the weight of the emulsions, and cosmetic
and pharmaceutical formulations based on oil-in-water emulsions which
contain said precipitation polymers.
Het gebruik van crosslinked copolymeren verkrijgbaar door precipitatiepolymerisatie die van monomeermengsels (a) monoethylenically uit onverzadigde C.sub.3 - C.sub.8 bestaat - carboxylic zuren, hun anhydriden of mengsels van bovengenoemde carboxylic zuren en anhydriden, (b) samenstellingen met minstens 2 niet-vervoegde ethylenic dubbele banden in de molecule als crosslinkers en, waar aangewezen, (c) andere monoethylenically onverzadigde monomeren die met monomeren (a) en (b), in aanwezigheid van vrij-radicale polymerisatieinitiatiefnemers en van 0,1 tot 20% in gewicht copolymerizable zijn, gebaseerd op de monomeren worden gebruikt die, van verzadigde, niet-ionische capillair-actieve samenstellingen, als stabilisator in oil-in-water emulsies in bedragen van van 0,01 tot 5% van het gewicht de emulsies, en kosmetische en farmaceutische gebaseerde formuleringen hylenic double bonds in the molecule as crosslinkers and, where appropriate, (c) other monoethylenically unsaturated monomers which are copolymerizable with monomers (a) and (b), in the presence of free-radical polymerization initiators and from 0.1 to 20% by weight, based on the monomers used, of saturated, nonionic surface-active compounds, as stabilizer in oil-in-water emulsions in amounts of from 0.01 to 5% of the weight of the emulsions, and cosmetic and pharmaceutical formulations based on oil-in-water emulsions which contain said precipitation polymers.
