| 摘要 |
PROBLEM TO BE SOLVED: To provide a rubber composition having a small compression set even with an additive compounded therewith, hardly causing bleeding out from the surface of the rubber, and capable of providing excellent surface nature after polishing, and further to provide a rubber roll for electrophotography, obtained from the rubber composition. SOLUTION: This rubber composition is obtained by using the sulfur-free additive capable of regulating the hardness (type A) of the molded product Y which comprises a rubber composition obtained by adding 30 pts.wt. sulfur- free additive based on 100 pts.wt. main raw material of an arbitrary rubber composition regulated so as to have 50 deg. hardness (type A), to the arbitrary rubber composition, so as to be 42-50 deg. (type A). The rubber roll is obtained by using the rubber composition. |
