| 摘要 |
<p>The present invention relates to a process for producing a dispersion of polymeric microspheres in a polyol comprising expanding 1 to 70 % by weight of polymeric beads in a polyol with a twin screw extruder to simultaneously mix and expand the beads to create a uniform dispersion of the microspheres in the polyol such that the wetting of the microspheres by the polyol is maximized.</p> |
