CROSSLINKED POLYPROPYLENE FOAM

PURPOSE:To provide a foamed article composed of a polypropylene resin and a polyethylene resin and, having high formability and excellent toughness, wherein the formability, the longitudinal tensile strength, and the longitudinal and transverse tensile elongations satisfy specific formulas. CONSTITU...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: OOKUBO SHIYUNJI, TAMAI ISAMU, YAMANE TOSHIHIRO, SUGAWARA KOUJI
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:PURPOSE:To provide a foamed article composed of a polypropylene resin and a polyethylene resin and, having high formability and excellent toughness, wherein the formability, the longitudinal tensile strength, and the longitudinal and transverse tensile elongations satisfy specific formulas. CONSTITUTION:A foamed article composed of 90-10wt%, preferably 85-50% polypropylene resin and 10-90%, preferably 15-50% polyethylene, wherein the formability H/L [H is draw depth (cm) in drawing; L is draw diameter (cm) in drawing], the longitudinal tensile strength X (kg/cm ) of the foam, the longitudinal tensile elongation Sm (%), the transverse tensile elongation St (%), and the apparent density p (g/cm ) of the foam satisfy the following formulas, H/L>= 0.60, X>=19-0.4/p, Sm>=280+4/p and St>=180+4/p.