POLYPROPYLENE COMPLEX RESIN COMPOSITION FOR LOW-TEMPERATURE INJECTION MOLDING

A polypropylene complex resin composition for low-temperature injection molding, may include (A) a polypropylene resin; (B) an olefin-based elastomer; (C) an inorganic reinforcing agent; and (D) an additive, wherein (A) the polypropylene resin is a polypropylene mixed resin including: about 100 part...

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Bibliographische Detailangaben
Hauptverfasser:	KIM HAK SOO, PARK JU SEONG, LEE HYEOK, KIM YONG HO, KIM BEOM HO, CHOI HOI JIN, BAK MUN GYU, LEE HAN KI, KIM DAE SIK
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS
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Beschreibung
Zusammenfassung:	A polypropylene complex resin composition for low-temperature injection molding, may include (A) a polypropylene resin; (B) an olefin-based elastomer; (C) an inorganic reinforcing agent; and (D) an additive, wherein (A) the polypropylene resin is a polypropylene mixed resin including: about 100 parts by weight of (A-1) a high-crystalline ethylene-propylene copolymer having an isotactic index of about 98 to 100% and a melt flow index value of about 20 to 50 g/10 min (2.16 kg, 230 DEG C.); and about 5 to 20 parts by weight of (A-2) an ultrahigh fluidity homopolypropylene having a melt flow indexvalue of about 1,000 to 1,800 g/10 min (2.16 kg, 230 DEG C.). According to the invention, even if under the low-temperature injection condition, excellent moldability can be achieved and excellent appearance quality of molded products is provided. 本发明公开种用于低温注塑的聚丙烯复合树脂组合物，其可以包含：(A)聚丙烯树脂，(B)基于烯烃的弹性体，(C)无机增强剂，以及(D)添加剂；其中(A)聚丙烯树脂为包含如下的聚丙烯混合树脂：约100重量份的(A-1)高结晶性乙烯-丙烯共聚物，其具有约98％至100％的全同立构指数和约20至50g/10min的熔体流动指数值(2.16kg，230℃)；以及