| 摘要 |
PROBLEM TO BE SOLVED: To obtain a conductive roller using catalysts which do not induce contamination by forming a conductive elastic layer by the polyurethane elastomer obtd. by reactively curing a specific reactive mixture by using the specific catalysts. SOLUTION: The outer periphery of a revolving shaft is provided with the conductive elastic layer. The conductive elastic layer consists of the polyurethane elastomer obtd. by reactively curing the reactive mixture contg. polyisocyanate, polyol and electrical conductivity imparting agent in the presence of the diazabicycloamine salt catalyst. The diazabicycloamine salt catalyst is the salt of ternary amine, i.e., quaternary ammonium compd. and is expressed by formula. In the formula, (n) is 3, 4, 5 or 6; A is the residue of the acid forming a salt with diazabicycloamine. A is preferably the residue of octyl acid, oleic acid, p-toluene sulfonic acid, formic acid, phenol, orthophthalic acid, acetic acid, maleic acid or boric acid. |
