COMPOSITE MATERIAL BASED ON VINYL AROMATIC POLYMERS HAVING ENHANCED THERMAL INSULATION PROPERTIES AND PROCESS FOR THE PREPARATION THEREOF

PROBLEM TO BE SOLVED: To provide expandable particle composite material suitable for the preparation of expanded materials having a density lower than 40 g/l and a content of closed cells of at least 60%.SOLUTION: The invention provides expandable particle composite material including heterophase ca...

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Hauptverfasser:	ANTONIO PONTICIELLO, ALESSANDRO SIMONELLI, RICCARDO FELISARI, DARIO GHIDONI, ALESSANDRO CASALINI
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS GENERAL PROCESSES OF COMPOUNDING MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS 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 USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS 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 provide expandable particle composite material suitable for the preparation of expanded materials having a density lower than 40 g/l and a content of closed cells of at least 60%.SOLUTION: The invention provides expandable particle composite material including heterophase cavities and/or heterophase domains, whose matrix is a synthetic thermoplastic polymer having at least 60 wt.% of a vinyl aromatic polymer and in which an expanding system is contained, together with a heterogeneously distributed graphite material, having a graphitization degree, calculated by means of the Maire and Mering formula, of at least 0.2. 【課題】４０ｇ／ｌ未満の密度および少なくとも６０％の独立気泡含量を有する発泡材料の調製に適した発泡性粒状複合材料の提供。【解決手段】異相空隙および／または異相ドメインが存在し、そのマトリックスが少なくとも６０重量％のビニル芳香族ポリマーを有する熱可塑性合成ポリマーであり、メール（Ｍａｉｒｅ）およびメーリング（Ｍｅｒｉｎｇ）の式によって計算された、少なくとも０．２の黒鉛化度を有する不均質に分布した黒鉛材料と共に、発泡系が含有されていることを特徴とする、発泡性粒状複合材料。【選択図】なし