Process for the production of expandable particles of styrene polymers

Process for the production of expandable particles of styrene polymers, having improved processability characteristics, which comprises: (i) producing expandable particles of styrene polymers containing from 2 to 20% of an expanding agent incorporated; (ii) covering these particles with an antistati...

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Bibliographische Detailangaben
Hauptverfasser:	GHIDONI, DARIO, ANFUSO, FRANCESCO
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G CHEMISTRY COMPOSITIONS BASED THEREON GENERAL PROCESSES OF COMPOUNDING MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP WORKING-UP
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Beschreibung
Zusammenfassung:	Process for the production of expandable particles of styrene polymers, having improved processability characteristics, which comprises: (i) producing expandable particles of styrene polymers containing from 2 to 20% of an expanding agent incorporated; (ii) covering these particles with an antistatic agent in a quantity of less than 1% by weight; (iii)vigorously frictioning the particles in a mixing apparatus in order to heat their surface, in a short time, by simple mechanical friction; (iv) discharging the particles thus treated from the mixing apparatus.