| 摘要 |
PURPOSE:To obtain inexpensively an electrically conductive crosslinked polyolefin foam having a uniform fine cell structure and excellent characteristics with a simple operation, by kneading an electrically conductive metal oxide particle, a blowing agent and a crosslinking agent with a polyolefin. CONSTITUTION:An electrically conductive metal oxide particle, a blowing agent and a crosslinking agent are kneaded with a polyolefin, and the resulting crosslinkable, expandable compsn. is heated to crosslink and expand it. Preferred electrically conductive metal oxides are electrically conductive zinc white, an electrically conductive powder obtd. by coating titanium oxide particle with a metal oxide composed of tin oxide and antimony oxide, and an electrically conductive powder composed of tin oxide and antimony oxide. The quantity of the electrically conductive metal oxide particle to be added varies depending on the characteristics of the electrically conductive foam to be produced, and is such that a foam having surface resistance, pref. an electrical resistance of 100MOMEGA or below is formed. |
