| abstract |
(57) [Problem] To provide a vulcanizate having a stable volume specific resistance value against fluctuations in temperature and humidity and free from bleeding or blooming. SOLUTION: 100 parts by weight of an epihalohydrin-based rubber and a quaternary ammonium salt 0.1 to 0.1 represented by the following general formula 1 A rubber composition containing 15 parts by weight and a vulcanizing agent, Vulcanize. General formula 1: (N + R 1 R 2 R 3 R 4 ) X − (wherein R 1 , R 2 , R 3 and R 4 represent an allyl group, a substituted alkyl group or an unsubstituted alkyl group, and at least one is a substituted alkyl group having an allyl group or an allyl group, X - represents an anion). |