Polypropylenharzzusammensetzung und gereckter film hiervon

The present invention relates to a polypropylene resin composition which comprises crystal propylene polymer composition (A) and crystal propylene polymer composition (B). In the first stage, crystal propylene polymer composition (A) with the limiting viscosity more than 3.0l/g and less than 5.0l/g...

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Bibliographische Detailangaben
Hauptverfasser:	HORI HIDEAKI, KISHIRO SHIGEKI
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS GENERAL PROCESSES OF COMPOUNDING INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULARARTICLES MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL WORKING-UP
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Beschreibung
Zusammenfassung:	The present invention relates to a polypropylene resin composition which comprises crystal propylene polymer composition (A) and crystal propylene polymer composition (B). In the first stage, crystal propylene polymer composition (A) with the limiting viscosity more than 3.0l/g and less than 5.0l/g is polymerized using propylene as the main monomer. After the first stage, crystal propylene polymer composition (B) with the limiting viscosity more than 1.5l/g and less than 2.5l/g is polymerized using propylene as the main monomer in the presence of crystal propylene polymer composition (A), then a propylene polymer containing crystal propylene polymer composition (A) with the weight ratio of more than 1 percent and less than 10 percent is obtained. The melt flow rate of the obtained propylene polymer is more than 1.0g/10 mins and less than 10g/10 mins with the temperature of 230 DEG C and the load of 21.18N.