| 摘要 |
An aqueous dispersion which comprises a) a flame retardant of the general formula (I) wherein R<SUB>1 </SUB>represents hydrogen, C<SUB>1-4</SUB>-alkyl, -CH<SUB>2</SUB>Cl, -CH<SUB>2</SUB>Br, -CH<SUB>2</SUB>O-C<SUB>1-4</SUB>-alkyl or phenyl, R<SUB>2 </SUB>represents hydrogen, C<SUB>1-4</SUB>-alkyl, -CH<SUB>2</SUB>Cl, -CH<SUB>2</SUB>Br or -CH<SUB>2</SUB>O-C<SUB>1-4</SUB>-alkyl, or R<SUB>1 </SUB>and R<SUB>2 </SUB>together with the ring carbon atoms bound to them, represent cyclohexylidene, cyclohexenylidene or 3,4-dibromocyclohexylidene, R<SUB>3 </SUB>and R<SUB>5 </SUB>independently represent hydrogen or C<SUB>1-4</SUB>-alkyl, R<SUB>4 </SUB>represents hydrogen or methyl, and X represents oxygen or sulfur, and b) an acrylate copolymer which substantially consists of 50 to 80 mol % of monoalkenyl aromatics and 20 to 50 mol % of acrylates. The inventive aqueous dispersions have an average molar mass M<SUB>v </SUB>between 1000 and 50 000 g/mol.
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