Abstract: A polymer is obtained by removing the medium from a polymer dispersion or polymer solution containing at least one polymeric phase and at least one stabilizer suitable to protect against the damaging effect of light, heat and/or oxidation.

Abstract: Isoindolinone derivatives of the formula I, in which the variables have the following meanings: R1 is hydrogen, COOR4, COR4, CONR4R5, CN, C1-C20-alkyl, C2-C10-alkenyl, C3-C10-cycloalkyl, C3-C10-cycloalkenyl, aryl or heteroaryl, substituted or unsubstituted; R1 and R2 together are C7-C10-bicycloalkyl or C7-C10-bicycloalkenyl; R3 is hydrogen, C1-C20-alkyl, C2-C10-alkenyl, C3-C10-cycloalkyl, C3-C10-cycloalkenyl, C1-C12-alkoxy, C1-C20-alkoxycarbonyl, C1-C12-alkylamino, C1-C12-dialkylamino, aryl or heteroaryl, substituted or unsubstituted, substituents which confer solubility in water, selected from the group consisting of carboxylate, sulfonate or ammonium radicals; R4 and R5 independently of one another are hydrogen, C1-C20-alkyl, C2-C10-alkenyl, C3-C10-cycloalkyl, C3-C10-cycloalkenyl; aryl or heteroaryl, substituted or unsubstituted; are used as stabilizers for organic materials.

Abstract: The use of substituted .alpha.-methylstyrene derivatives of the formula I, ##STR1## where the variables have the following meanings: R.sup.1 C.sub.4 -C.sub.10 -alkoxy, C.sub.1 -C.sub.12 -alkylamino, C.sub.1 -C.sub.12 -dialkylamino, substituents which confer solubility in water and which are selected from the group consisting of carboxylate, sulfonate or ammonium residues;R.sup.2 hydrogen, C.sub.2 -C.sub.10 -alkyl, C.sub.1 -C.sub.12 -alkoxy;R.sup.3 COOR.sup.5, COR.sup.5, CONR.sup.5 R.sup.6, CN;R.sup.4 COOR.sup.5, COR.sup.5, CONR.sup.5 R.sup.6, CN; where the substituents R.sup.3 and R.sup.4 are identical in each case;R.sup.5 andR.sup.6 independently of one another hydrogen, C.sub.1 -C.sub.12 -alkyl, C.sub.2 -C.sub.10 -alkenyl, C.sub.3 -C.sub.10 -cycloalkyl, C.sub.3 -C.sub.

Abstract: The use of cholesteric, liquid-crystalline compositions comprisinga) at least one chiral, liquid-crystalline, polymerizable monomer of the formula I,[Z.sup.1 -Y.sup.1 -(A.sup.1).sub.m -Y.sup.2 -M.sup.1 -Y.sup.3 -].sub.n -XIby means of which a cholesteric, liquid-crystalline phase with a pitch of less than 450 nm can be obtained,orb) a mixture ofb.sub.1) at least one achiral, liquid-crystalline, polymerizable monomer of the formula IIZ.sup.2 -Y.sup.4 -(A.sup.2)-.sub.o -Y.sup.5 -M.sup.2 -Y.sup.6 -(A.sup.3).sub.p -Y.sup.7 -Z.sup.3 lIandb.sub.2) at least one chiral additive by means of which a cholesteric, liquid-crystalline phase with a pitch of less than 450 nm can be obtained,where the variables are as defined in the description, as UV filters in cosmetic and pharmaceutical preparations for protecting the human skin or human hair against sunlight, alone or together with UV-absorbent compounds which are known per se for cosmetic and pharmaceutical preparations.

Abstract: A process for the production of a molding, fiber or film which can be caused to fluoresce by an electrical voltage which comprises using linear mixtures comprising a fluorescent dye from the perylene series and a thermoplastic polymer having a degree of crystallinity of less than 10%.

Abstract: Fluorescent pigments contain essentially a polymer matrix based on polymethyl methacrylate and a nonpolar fluorescent dye from the coumarin or perylene series, the polymer matrix being a crosslinked polymethacrylate or polyacrylate prepared by suspension polymerization.