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Reconstituted polymeric materials derived from post-consumer waste, industrial scrap and virgin resins made by solid state shear pulverization
专利权人:
MATERIAL SCIENCES CORPORATION
发明人:
KHAIT KLEMENTINA
申请号:
US20020277980
公开号:
US6849215(B2)
申请日:
2002.10.23
申请国别(地区):
美国
年份:
2005
代理人:
摘要:
A method of making polymeric particulates wherein polymeric scrap material, virgin polymeric material and mixtures thereof are supplied to intermeshing extruder screws which are rotated to transport the polymeric material along their length 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 a compatibilizing agent. The pulverized particulates are directly melt processable (as powder feedstock) and surprisingly yield a substantially homogeneous light color product.
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