PROPYLENE-BASED COPOLYMER, PREPARATION METHOD THEREFOR AND USE THEREOF, AND POLYPROPYLENE COMPOSITION CONTAINING SAME

PROPYLENE-BASED COPOLYMER, PREPARATION METHOD THEREFOR AND USE THEREOF, AND POLYPROPYLENE COMPOSITION CONTAINING SAME

The invention belongs to the field of olefin polymerization and relates to a propylene-based copolymer, its preparation process and use, and a polypropylene composition thereof. The propylene-based copolymer can contain 60-95wt% of propylene-derived structural units and 5-40wt% of comonomer-derived...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: FANG, Yuanyuan, LYU, Jinglan, SONG, Wenbo, HAN, Shuliang, WANG, Lusheng, JIN, Zhao
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
CHEMISTRY
COMPOSITIONS BASED THEREON
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
THEIR PREPARATION OR CHEMICAL WORKING-UP
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Beschreibung
Zusammenfassung:The invention belongs to the field of olefin polymerization and relates to a propylene-based copolymer, its preparation process and use, and a polypropylene composition thereof. The propylene-based copolymer can contain 60-95wt% of propylene-derived structural units and 5-40wt% of comonomer-derived structural units; the propylene-based copolymer has a comonomer dispersion degree D[PCP]/[C] in the range of 50%-70%, wherein the comonomer dispersion degree D[PCP]/[C]=[PCP]/[C]×100%. Upon blending the propylene-based copolymer of the present invention with a polypropylene, the copolymer has excellent compatibility with polypropylene, and can promote the crystallization of the polypropylene and can improve the mechanical properties of the resulting polypropylene material.