Propylene polymer

摘要

A propylene polymer is characterized by satisfying the following (1) to (5):(1) a melt flow rate (MFR) measured at 230° C. under a 2.16 kg load of from 0.1 to 1000 g/10 min;(2) an isotactic triad traction (mm) measured by <13>C-NMR of 99.0 % or above;(3) a Q value measured by gel permeation chromatography (GPC) of from 2.0 to 6.0;(4) a relation between melt flow rate (MFR: g/10 min) measured at 230° C. under a 2.16 kg load and a memory effect (ME) measured at 190° C. at an orifice diameter of 1.0 mm satisfying the following formula (I):and(5) a relation of the cold xylene solubles at 23° C. (CXS) satisfying the following formula (II)wherein [C2] represents the ethylene unit content (% by weight) in the polymer.