| 摘要 |
PURPOSE: To improve the surface adhesion of a conductive roller consisting of a polyurethane elastomer, and to improve the efficiency of the grinding work of a roller. CONSTITUTION: In a conductive roller where a rotary shaft and a low hardness conductive and elastic layer on the outer circumference thereof are concentrically and integrally laminated, the low hardness conductive and elastic layer consists of polyurethane elastomer where 0.5-10 pts.wt. dimethyl-siloxane whose viscosity at 25 deg.C is 100,000-800,000cps is contained based on 100 pts.wt. of the total contents of polyol component and isocyanate component and reacted to be hardened. |
