| 摘要 |
<p>Particulate plastics materials having different softening points are sepd. from one another by: (a) supplying the particles to a heated moving substrate (2) so that the material (19) with the lower softening point adheres to the substrate (2) while the other material remains free; (b) allowing the free material (22) to fall from the substrate, and (c) removing the adhering material from the substrate e.g. by means of a scraper (20) or brush.</p> |
