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1. (WO2018102898) PROCESS FOR RECYCLING PRODUCTS HAVING COMPOSITE MATERIALS, COMPOUNDS OR RESINS CONTAINING ABSORBENT POLYMERS

Pub. No.:    WO/2018/102898    International Application No.:    PCT/BR2017/050371
Publication Date: Fri Jun 15 01:59:59 CEST 2018 International Filing Date: Thu Dec 07 00:59:59 CET 2017
IPC: C08L 101/00
C08L 23/06
C08L 23/12
C08L 27/06
C08L 97/02
B09B 3/00
B02C 19/11
B02C 23/18
A61L 2/08
A61L 11/00
C02F 11/12
C05F 9/00
C05F 17/00
D21B 1/32
Applicants: INSTITUTO PRESBITERIANO MACKENZIE
WISEWASTE CONSULTORIA AMBIENTAL LTDA.
CUNHA, Kátia Lúcia Da Silva Gonçalves
Inventors: CUNHA, Kátia Lúcia Da Silva Gonçalves
Title: PROCESS FOR RECYCLING PRODUCTS HAVING COMPOSITE MATERIALS, COMPOUNDS OR RESINS CONTAINING ABSORBENT POLYMERS
Abstract:
The used absorbent products, such as diapers and sanitary napkins, containing cellulose pulp and other polymers, are submitted to the steps of: immersion in a solution with controlled pH range and radiation for sterilization of the products; crushing; washing with the use of washing liquid under agitation to separate the cellulose pulp from the other materials of the absorbent products; and forced drying/dehydration. According to the process, the different materials resulting from the drying step can be further submitted to the steps of: mixing homogeneously and in the necessary proportions, the different materials resulting from the drying step; melting in a new blend or composite material; processing the blend or composite material into granules; and molding the granules in final products/test bodies.