| 摘要 |
<p>A polymeric film comprising from 0.0005% to 2% by weight, based upon the weight of the polymer in the film, of filler particles having a volume distributed median particle diameter of from 0.1 to 12.5 mu m, the filler particles being obtainable by calcining precursor silicone resin particles prior to incorporation into the film polymer.</p> |
