| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a polyethylene-based resin composition that can provide a foam that has a high expansion ratio and is excellent in compression durability and secondary workability. <P>SOLUTION: The polyethylene-based resin composition is used which comprises: 95-30 wt.% of an ethylene-based polymer (a) in which a density is 920-950 kg/m<SP POS="POST">3</SP>, an MFR is 0.1-50 g/10 minutes, two peaks are shown in a molecular weight measurement by a gel permeation chromatography, and a ratio (Mw/Mn) of a weight average molecular weight (Mw) to a number-average molecular weight (Mn) is in a range of 2.0-7.0, wherein the ethylene-based polymer has at least 0.15 long chain branching per 1,000 of a carbon number of a main chain in a fraction in which Mn is at least 100,000 when a molecular weight is classified; and 5-70 wt.% of a high-pressure process low-density polyethylene (b). <P>COPYRIGHT: (C)2012,JPO&INPIT |
