| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an ethylenic polymer composition for extrusion lamination, capable of providing a laminated molded product which is reduced in curl while having satisfactory heat resistance, and is less likely to become larger in thickness at the ends than at the center. <P>SOLUTION: The ethylenic polymer composition includes: 50-80 wt.% of an ethylene-α-olefin copolymer (A) having a density of 920-955 kg/m<SP POS="POST">3</SP>and MRF<SB POS="POST">A</SB>of 5 g/10 min. or more and 10 g/10 min. or less; 10-40 wt.% of a high-density polyethylene (B) having a density of larger than 955 kg/m<SP POS="POST">3</SP>and 975 kg/m<SP POS="POST">3</SP>or less and MFR<SB POS="POST">B</SB>of 5 g/10 min. or more and less than 40 g/10 min.; and 10-40 wt.% of a high-pressure-process low-density polyethylene (C) having a density of 915-930 kg/m<SP POS="POST">3</SP>and MFR<SB POS="POST">C</SB>of 1.25-10 g/10 min, and satisfies requirements (a)-(d). (a) The melt tension measured at 160°C is 10-100 mN, (b) MFR is 4-17 g/10 min., (c) MFR<SB POS="POST">A</SB>/MFR<SB POS="POST">B</SB>is 0.25-4.0, and (d) MFR<SB POS="POST">A</SB>/MFR<SB POS="POST">C</SB>is 0.25-4.0. <P>COPYRIGHT: (C)2013,JPO&INPIT |
