OLEFIN POLYMER COMPOSITION

This invention relates to a polymer composition comprising: (A) 65 to 35 parts by mass of a copolymer containing a constitutional unit derived from ethylene and a constitutional unit derived from an α-olefin having 3 to 20 carbon atoms; (B) 35 to 65 parts by mass of a propylene-based polymer having...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: KUSUMOTO, Remi, ISHIKAWA, Ryo, SASAKI, Masatoshi
Format: Patent
Sprache:eng ; fre ; ger
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Beschreibung
Zusammenfassung:This invention relates to a polymer composition comprising: (A) 65 to 35 parts by mass of a copolymer containing a constitutional unit derived from ethylene and a constitutional unit derived from an α-olefin having 3 to 20 carbon atoms; (B) 35 to 65 parts by mass of a propylene-based polymer having a melting point of 135°C to 170°C measured by DSC (provided that the total of the component (A) and the component (B) is 100 parts by mass); (C) 0.01 to 0.50 parts by mass of fatty acid amide with a molecular weight of 310 to 5,000 relative to 100 parts by mass of the total of the component (A) and the component (B); and (D) 0.01 to 0.50 parts by mass of fatty acid amide with a molecular weight of 298 or less relative to 100 parts by mass of the total of the component (A) and the component (B), wherein, when the amount of the component (C) is designated Wc and the amount of the component (D) is designated Wd, Wc/Wd is 0.5 to 1.5, and the component (A) is not crosslinked. Also, this invention relates to a formed product prepared from such polymer composition and a method for producing an injection-molded product comprising subjecting such polymer composition to injection molding.