HIGH MELT STRENGTH PP BLENDS FOR FOAM WITH HIGH THERMOSTABILITY

HIGH MELT STRENGTH PP BLENDS FOR FOAM WITH HIGH THERMOSTABILITY

A polymer composition contains A) a high melt strength polypropylene in an amount ≥30 wt % and ≤90 wt % based on the polymer composition, B) an ethylene-based elastomer having a density ≥855 to ≤913 kg/m3, wherein the density is determined in accordance with ASTM D792 (2008), wherein the ethylene-ba...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: THEUNISSEN, Mark, Leo, Hendrik, KRIST, Johan, Maria
Format: Patent
Sprache:eng ; fre ; ger
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
WORKING-UP
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Beschreibung
Zusammenfassung:A polymer composition contains A) a high melt strength polypropylene in an amount ≥30 wt % and ≤90 wt % based on the polymer composition, B) an ethylene-based elastomer having a density ≥855 to ≤913 kg/m3, wherein the density is determined in accordance with ASTM D792 (2008), wherein the ethylene-based elastomer is present in the polymer composition in an amount ≥10 wt % and ≤49 wt % based on the polymer composition and C) a further polypropylene, wherein the further polypropylene is present in the polymer composition in an amount ≥0 wt % and ≤60 wt % based on the polymer composition and wherein the sum of the weight of high melt strength polypropylene and the further polypropylene is ≥51 wt % based on the sum of the weight of the high melt strength polypropylene, the further polypropylene and the ethylene-based elastomer.