POLYPROPYLENE RESIN COMPOSITION FOR THERMOFORMING

PROBLEM TO BE SOLVED: To obtain a polypropylene resin composition being moldable in a wide range of temperatures and improved in thermoformability by mixing a polypropylene with two or more polyethylene resins having different melting points. SOLUTION: Fifty (50) to 95wt.% polypropylene (A) having a...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
1. Verfasser:	FURUKAWA SADAFUMI
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To obtain a polypropylene resin composition being moldable in a wide range of temperatures and improved in thermoformability by mixing a polypropylene with two or more polyethylene resins having different melting points. SOLUTION: Fifty (50) to 95wt.% polypropylene (A) having a melt viscosity of 300Pa.s or above (at 250 deg.C and a shear rat of 121.6sec ) is mixed with 50-5wt.% two or more polyethylene resins (B) having melting points (melting peak temperatures) different from each other by at least 8 deg.C when measured with a differential scanning calorimeter (a heat flux type DSC) according to JIS-K-7121) and having a difference of 30 deg.C or above between the maximum and minimum values of the melting points of components A and B to obtain a polypropylene resin for thermoforming and satisfying the relationship: ρe /ρp