PROPYLENE-BASED RESIN COMPOSITION, MOLDINGS, AND CONTAINER

摘要

A propylene-based resin composition capable of providing moldings (such as container) which exhibit excellent physical properties even when the moldings have a reduced wall thickness or a reduced weight.  The propylene-based resin composition comprises (A) a propylene-based polymer satisfying the requirements (A1) to (A5), (B) an ethylene/a-olefin copolymer satisfying the requirements (B1) to (B3), and a nucleating agent: (A1) the content of decane insolubles (Dinsol) is 90.5 to 97.0wt%, and the content of decane solubles (Dsol) is 3.0 to 9.5wt%; (A2) the ?sol of Dsol is 1.0 to 2.5dl/g; (A3) the ethylene unit content  of Dsol by weight is 25 to 35wt%; (A4) the ?insol of Dinsol is 0.8 to 1.1dl/g; (A5) the MFR (230°C, 2.16kg) is 35 to 170g/10min; (B1) the copolymer is a polymer obtained by polymerization using a single-site catalyst; (B2) the density is 900 to 919kg/m3; and (B3) the MFR (190°C, 2.16kg) is 0.1 to 50g/10min.