Reconstituted polymeric materials derived from post-consumer was

Details Reconstituted polymeric materials derived from post-consumer was Reconstituted polymeric materials derived from post-consumer was

1996-04-26

1998-09-29

Dean, Ralph H.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Process of treating scrap or waste product containing solid...

521 405, 521 41, 521 455, 521 47, 521 48, 241 23, 241 65, 2412601, 366 85, B29B 1700

Patent

active

058146733

ABSTRACT:
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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