| 摘要 |
<p>The invention relates to a method for production of bead polymers with an average particle size in the range 1 ??m to 40 ??m, whereby a polymerisable composition is dispersed and polymerised in an aqueous phase with generation of a dispersion stabilised by an aluminium compound having a shear speed a??Ñ 10<sup>3</sup> s<sup>-1</sup>. A polymerisable composition is used, comprising, based on the total weight thereof, a) more than 50.0 wt. % of at least one compound of formula (I), whereby the groups <sup>1</sup>R to <sup>6</sup>R are as given in the description, b) 0.1 wt. % to 10.0 wt. % of at least one cross-linker and d) less than 49.9 wt. % of at least one compound of formula (II) whereby the groups R and <sup>7</sup>R to <sup>9</sup>R are as defined in the description. The bead polymers produced by said method are particularly suitable for the production of moulded bodies with light scattering properties.</p> |
