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Title: Reconstituted polymeric materials derived from post-consumer waste, industrial scrap and virgin resins made by solid state pulverization

Abstract

A method of making polymeric particulates is described 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 compatible agent. The pulverized particulates are directly melt processable (as powder feedstock) and surprisingly yield a substantially homogeneous light color product. 29 figs.

Inventors:
Issue Date:
Sponsoring Org.:
USDOE, Washington, DC (United States)
OSTI Identifier:
672624
Patent Number(s):
5,814,673
Application Number:
PAN: 8-639,344
Assignee:
Northwestern Univ., Evanston, IL (United States) PTO; SCA: 320604; 320305; PA: EDB-98:119294; SN: 98002026810
Resource Type:
Patent
Resource Relation:
Other Information: PBD: 29 Sep 1998
Country of Publication:
United States
Language:
English
Subject:
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; MUNICIPAL WASTES; INDUSTRIAL WASTES; POLYMERS; MIXTURES; COMMINUTION; RECYCLING

Citation Formats

Khait, K. Reconstituted polymeric materials derived from post-consumer waste, industrial scrap and virgin resins made by solid state pulverization. United States: N. p., 1998. Web.
Khait, K. Reconstituted polymeric materials derived from post-consumer waste, industrial scrap and virgin resins made by solid state pulverization. United States.
Khait, K. Tue . "Reconstituted polymeric materials derived from post-consumer waste, industrial scrap and virgin resins made by solid state pulverization". United States.
@article{osti_672624,
title = {Reconstituted polymeric materials derived from post-consumer waste, industrial scrap and virgin resins made by solid state pulverization},
author = {Khait, K.},
abstractNote = {A method of making polymeric particulates is described 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 compatible agent. The pulverized particulates are directly melt processable (as powder feedstock) and surprisingly yield a substantially homogeneous light color product. 29 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1998},
month = {9}
}