Process for recovering resin from a spent commercial article

A method for recovering a resin material from a spent commercial article comprises contacting the commercial article with a solution of a dialkyl ketone and tetrahydrofuran, and granulating the resin material, and recovering the resulting resin granules. The present method is useful for the recovery...

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Bibliographische Detailangaben
Hauptverfasser:	SIERRALTA, LUIS F, FERER, HARVEY D
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G CHEMISTRY CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATERTREATMENT OR WASTE MANAGEMENT COMPOSITIONS BASED THEREON GENERAL PROCESSES OF COMPOUNDING GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE THEIR PREPARATION OR CHEMICAL WORKING-UP WORKING-UP
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Beschreibung
Zusammenfassung:	A method for recovering a resin material from a spent commercial article comprises contacting the commercial article with a solution of a dialkyl ketone and tetrahydrofuran, and granulating the resin material, and recovering the resulting resin granules. The present method is useful for the recovery of synthetic resins including polyolefins, polycarbonates and vinyl polymers. The granulated resins recovered have a high purity in addition to retaining the properties and composition of the original resin material, and little or none of the solution utilized in the recovery process is lost. In the instance where the resin is being removed from a metal substrate, the surface of the substrate is undamaged and perfectly clean, and the recovery solution is free from metallic particles.