| 摘要 |
<p>Vinyl chloride polymers contg non-masticated, finely divided carbon black particles, dispersed in the particles of the resin, are prepd. by (a) forming an aq dispersion of carbon black contg 50 wt.% solids of a hydrosol. dispersing agent formation of an aq. suspension of a vinyl chloride in an aq soln of an org. hydrosoluble suspension agent (c) mixing (a) with (b), (d) addn of a polymerise initiator to give the desired conversion monomer polymer. The polymer is used in fluidised bed processes and for prodn of gramophone records.</p> |
