ENDLESS BELT

摘要

PROBLEM TO BE SOLVED: To provide an endless belt including an elastic layer capable of suppressing a surface crack due to ozone deterioration and having a good abrasion resistance property.SOLUTION: An endless belt 1 is used for an electrophotography type image formation device. The endless belt 1 includes a cylindrically formed substrate layer 2 and an elastic layer 3 laminated on the outer circumference of the substrate layer 2. The elastic layer 3 is composed of the thermal hardening material of a rubber composition including a matrix polymer containing hydrogenation acrylonitrile-butadiene rubber and polyvalent isocyanate having two or more isocyanate groups in a molecule. The content of the isocyanate group in the rubber composition is within a range of 1 to 15 mass percent.