| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a master batch of a foaming agent for a polyarylene sulfide resin, providing a foam-molded product having fine uniform cells, light weight and good surface state by a simple method of only blending the master batch of a proper amount with polyarylene sulfide resin pellets before molding. <P>SOLUTION: The master batch of the foaming agent for the polyarylene sulfide resin is obtained by compounding 1-100 pts.wt. of a thermal decomposition-type foaming agent having a decomposition temperature of ≥170°C with 100 pts.wt. of a low-density polyethylene comprising repeating units derived from ethylene, and having a melt flow rate of ≥0.1 g/10 min and <10 g/10 min, a melt tension at 160°C of ≥50 mN, strain hardening properties and a density of 910-935 kg/m<SP POS="POST">3</SP>. <P>COPYRIGHT: (C)2013,JPO&INPIT |
