PROBLEM TO BE SOLVED: To provide a method for producing powder particles of a polyamide, copolyamide, polyether block amide, polyolefin, polyester or fluorocarbon resin having a grafting chain on its surface, the grafted powder particles, and to provide a composition containing these powder particles.SOLUTION: The method for producing powder particles comprises the steps of (a) blending the powder particles with at least one functionalized graft monomer, and (b) exposing the powder particles impregnated with the functionalized graft monomer which is obtained by the step of (a) to photon (&gamma ray) or electron (&beta ray) irradiation with a dose of 0.5-15 Mrad.COPYRIGHT: (C)2006,JPO&NCIPI【課題】表面にグラフト鎖が付いたポリアミド、コポリアミド、ポリエーテルブロックアミド、ポリオレフィン、ポリエステルまたはフルオロカーボン樹脂の粉末粒子の製造方法と、グラフトされた粉末粒子と、この粉末粒子を含む組成物。【解決方法】下記の(a)と(b)の段階を有する:(a)上記粉末粒子を少なくとも一種の官能化グラフトモノマーと混合する段階、(b)段階(a)で得られた官能化グラフトモノマーで含浸された粉末粒子に光照射(γ線)または電子線(β線)を0.5~15Mradの照射量で照射する段階。【選択図】 なし
