PROCESSING METHOD OF RUBBER-CONTAINING POLYLACTIC ACID-BASED THERMOPLASTIC RESIN COMPOSITION, AND REGENERATED THERMOPLASTIC RESIN COMPOSITION

PROBLEM TO BE SOLVED: To process a rubber-containing polylactic acid-based thermoplastic resin composition recovered from defective products produced in production processes and from the market, and to efficiently separate and recovery high purity lactide and a rubber-containing thermoplastic resin...

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Bibliographische Detailangaben
Hauptverfasser:	KAWAGUCHI EIICHIRO, SHIRAI YOSHITO, HIROMOTO YASUYUKI, NISHIDA HARUO, TSUKUKI TAKAYUKI
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATERTREATMENT OR WASTE MANAGEMENT COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS GENERAL PROCESSES OF COMPOUNDING GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS MAKING GRANULES OR PREFORMS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL PREPARATION OR PRETREATMENT OF THE MATERIAL TO BESHAPED RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIALCONTAINING PLASTICS 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 THEIR RELEVANT APPARATUS TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL WORKING-UP
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To process a rubber-containing polylactic acid-based thermoplastic resin composition recovered from defective products produced in production processes and from the market, and to efficiently separate and recovery high purity lactide and a rubber-containing thermoplastic resin composition.SOLUTION: The method for processing a rubber-containing polylactic acid-based thermoplastic resin composition comprises: continuously feeding 100 pts.wt. of a rubber-containing polylactic acid-based thermoplastic resin composition (A), 0.005 to 20 pts.wt. of an alkaline earth metal oxide (B) and 5 to 200 pts.wt. of a hard (co)polymer (C), wherein the proportion of the (B) component in total 100 pts.wt. of the component (B) and the component (C) is 0.1 to 10 pts.wt., into an extrusion machine at a cylinder set temperature of 180 to 250°C; and separating and recovering a lactide (D) and a rubber-containing thermoplastic resin composition (E).