espuma de polipropileno, seu processo de preparação, e uso de polipropileno

The present invention relates to a foam comprising a polypropylene, wherein said polypropylene is produced in the presence of a metallocene catalyst, and the foam and/or the polypropylene has (have) a. a branching index g' of less than 1.00 and b. a strain hardening index (SHI@1s -1 ) of at lea...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	Eberhard Ernst, MANFRED STADLBAUER
Format:	Patent
Sprache:	por
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
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	The present invention relates to a foam comprising a polypropylene, wherein said polypropylene is produced in the presence of a metallocene catalyst, and the foam and/or the polypropylene has (have) a. a branching index g' of less than 1.00 and b. a strain hardening index (SHI@1s -1 ) of at least 0.30 measured by a deformation rate dµ / dt of 1.00 s -1 at a temperature of 180 °C, wherein the strain hardening index (SHI) is defined as the slope of the logarithm to the basis 10 of the tensile stress growth function (lg ( · E + )) as function of the logarithm to the basis 10 of the Hencky strain (lg (µ)) in the range of Hencky strains between 1 and 3