| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a plasticization technique for regenerating and reusing a crosslinked polyolefinic resin crush body poor in thermofusibility in itself. <P>SOLUTION: The crosslinked polyolefinic resin crush body is melted and kneaded within a temperature range 150°C lower than a melting point of the polyolefinic resin while applying shearing force, after a thermally decomposable foaming agent is decomposed by melting and kneading the crosslinked polyolefinic resin crushed body at a temperature ranging from a decomposition temperature of the thermally decomposable foaming agent to a temperature 150°C lower than the melting point of the crosslinked polyolefinic resin crushed body while applying shearing force. In this way, a melt index (190°C, 2.16 kg load) becomes 0.5-300 g/10min, and a gel fraction becomes 5 wt.% or lower. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
