METHOD FOR DECOLORIZING A COLORED SYNTHETIC OR NON-SYNTHETIC POLAR-POLYMER MATERIAL

The present invention relates to a method for accelerated decolorizing a colored synthetic or non-synthetic polar-polymer material comprising the steps of exposing the colored synthetic and/or non-synthetic polar-polymer material to a decoloring composition, wherein the decoloring composition compri...

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Bibliographische Detailangaben
1. Verfasser:	ROBERTZ, Bernd
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G CHEMISTRY COMPOSITIONS BASED THEREON DYEING LEATHER, FURS, OR SOLID MACROMOLECULAR SUBSTANCES INANY FORM DYEING OR PRINTING TEXTILES FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR GENERAL PROCESSES OF COMPOUNDING LAUNDERING MAKING GRANULES OR PREFORMS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS PREPARATION OR PRETREATMENT OF THE MATERIAL TO BESHAPED RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIALCONTAINING PLASTICS TEXTILES THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING TREATMENT OF TEXTILES OR THE LIKE WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL WORKING-UP
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Beschreibung
Zusammenfassung:	The present invention relates to a method for accelerated decolorizing a colored synthetic or non-synthetic polar-polymer material comprising the steps of exposing the colored synthetic and/or non-synthetic polar-polymer material to a decoloring composition, wherein the decoloring composition comprises at least one aromatic carbonic acid ester, at least one reducing agent or at least one oxidizing agent, and at least one alkaline agent, or wherein the decoloring composition comprises at least one aromatic hydrocarbon, at least one reducing agent or at least one oxidizing agent, and at least one alkaline agent. La présente invention concerne un procédé pour la décoloration accélérée d'un matériau polymère polaire synthétique ou non synthétique coloré comprenant les étapes consistant à exposer le matériau polymère polaire synthétique et/ou non synthétique coloré à une composition de décoloration, la composition de décoloration comprenant au moins un ester d'acide carbonique aromatique, au moins un agent réducteur ou au moins un agent oxydant, et au moins un agent alcalin, ou la composition de décoloration comprenant au moins un hydrocarbure aromatique, au moins un agent réducteur ou au moins un agent oxydant, et au moins un agent alcalin.