Devulcanized rubber, method of manufacturing devulcanized rubber, and method of manufacturing reclaimed molded rubber products from devulcanized rubber

摘要

Devulcanized rubber in which sulfuric crosslinking bonds are cut and which contains carbon black particles having very small diameters. Vulcanized rubber of discarded products is devulcanized by heating it at a temperature of 180 DEG C - 350 DEG C and applying a shearing pressure of 10 - 150kg/cm<2> thereto. Reclaimed rubber products are manufactured by vulcanizing and molding, into desired shapes, a material made of only devulcanized rubber in which sulfuric crosslinking bonds are cut and which contains carbon black particles having very small diameters or a material made of the devulcanized rubber mixed with virgin unvulcanized rubber.