| 摘要 |
<p>A method of making polymeric particulates (P) wherein polymeric scrap material. virgin polymeric material and mixtures thereof (M) are supplied to intermeshing extruder screws (14) which rotated to transport the polymeric material along their length (SN Total) and subject the polymeric material to solid state shear pulverization and in-situ polymer compatibilization, if two or more incompatible polymers are present. Uniform pulverized particulates are produced without addition of compatibilizing agent. The pulverized particulates are directly melt processable (a powder feedstock) and surprisingly yield a substantially homogenous light color product.</p> |
