Particle-shaped, expandable styrol polymers and method for the production thereof

Particulate, expandable styrene polymers capable of being processed into hard foamed plastic materials of a small density and containing, therefore, at least one foaming agent comprise at least aluminum in a particulate form for improving their thermal insulation properties. The styrene polymer part...

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Bibliographische Detailangaben
Hauptverfasser:	MARIACARLA ARDUINI-SCHUSTER, JOACHIM KUHN, ROMAN EBERSTALLER
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS GENERAL PROCESSES OF COMPOUNDING METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS WORKING-UP
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Beschreibung
Zusammenfassung:	Particulate, expandable styrene polymers capable of being processed into hard foamed plastic materials of a small density and containing, therefore, at least one foaming agent comprise at least aluminum in a particulate form for improving their thermal insulation properties. The styrene polymer particles comprise, after their expansion, a fine cell structure and contain the aluminum particles incorporated in a homogeneous distribution as an infrared ray reflecting material. The main proportion of these aluminum particles has the shape of platelets having a size between 1 and 15 mum. Styrene polymer particles produced in this manner can be foamed into plastic materials of foamed polystyrene particles which have a density of 30 g/l in maximum and improved heat insulation characteristics.