Process and apparatus for reprocessing polyurethane foam wastes,

Details Process and apparatus for reprocessing polyurethane foam wastes, Process and apparatus for reprocessing polyurethane foam wastes,

1994-05-03

1995-09-19

Warden, Robert J.

Chemical apparatus and process disinfecting, deodorizing, preser

Chemical reactor

Organic polymerization

422133, 422230, 422234, 425 4R, 425817R, 241 97, 2411018, 2411522, C08F 200, B01J 808, B28B 150, B02C 2300

Patent

active

054513766

ABSTRACT:
In a fine comminution apparatus arranged downstream of a coarse comminution apparatus, polyurethane foam wastes can be comminuted to the desired particle size for recycling as an additive in the production of polyurethane, in a low-dust and energy-saving manner, by carrying out the fine comminution preferably by repeatedly forcing a mixture of the coarsely comminuted material and one of the reaction components through a nozzle or through a plurality of nozzles.

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Kunstoffe, Bd. 81, Nr. 10, Oct. 1991, Munchen de Seiten 928-933--Dipl.-Ing. Hans Michael Sulzbach `Schuttgut in Pur-Reactionsgiessprozessen Verarbeiten`.
Database WPI--Section Ch, Week 9305, Derwent Publications Ltd., London, GB; Class AGR, AN 93-040681 CO5! & JP-A 04366119 (Mitisubishi Kasei Dow K.K.) Dec. 18, 1992.

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