| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a resin composition for weld molding, which can secure, when resin members are mutually joined by means of welding, high strength in the weld surface without causing an appearance failure in the weld zone, and to provide a weld molded article including a resin member comprising the resin composition. <P>SOLUTION: The resin composition for weld molding includes 40 pts.wt. or more (based on 100 pts.wt. of the total amount of the composition) of a propylene-based polymer (A) satisfying the following requirements [1]-[4]. [1] MFR, in measurement at 230°C and a load of 2.16 kg according to ASTM D1238E, is 0.5 g/10 min. or more and 300 g/10 min. or less; [2] (Mw/Mn) of a moiety insoluble to n-decane at room temperature (D<SB POS="POST">insol</SB>) is 1.5 or more and 4.0 or less; [3] (Mz/Mw) of (D<SB POS="POST">insol</SB>) is 1.5 or more and 3.0 or less; and [4] the ratio of (D<SB POS="POST">insol</SB>) to the total amount of the propylene-based polymer (A) is 50 wt.% or more and 100 wt.% or less. <P>COPYRIGHT: (C)2013,JPO&INPIT</p> |
