Expanded resin beads

The present invention relates to an expanded resin bead comprising: a core which comprises a crystalline thermoplastic resin and is in an expanded state, and a coat which comprises an ethylene-based polymer which is lower in melting point than said thermoplastic resin or shows substantially no melti...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	GOTOH, TOSHIHIRO, YOKOYAMA, MASAAKI, ABE, TADASHI, OHKUWA, TERUYA
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G CHEMISTRY COMPOSITIONS BASED THEREON GENERAL PROCESSES OF COMPOUNDING 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 THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING 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 an expanded resin bead comprising: a core which comprises a crystalline thermoplastic resin and is in an expanded state, and a coat which comprises an ethylene-based polymer which is lower in melting point than said thermoplastic resin or shows substantially no melting point, and which coat is in a substantially unexpanded state.