VULCANIZING AGENTS, DRYING AGENTS, REINFORCING FILLERS AND EXTENDERS, ANTI-AGING AGENTS, LOW TEMPERATURE FLEXIBILIZING AGENTS, HEAT-STABILIZING AGENTS, ANTI-RADIATION AGENTS, ANTIOXIDANTS, FLUORESCENT MARKING AGENTS, CHEMICAL STABILIZING AGENTS, PIGMENTS, BLOWING AGENTS, VULCANIZATION RETARDING AGENTS, AND FLAME RETARDING AGENTS FOR ADDITION TO NATURAL AND SYNTHETIC RUBBERS AND SYNTHETIC PLASTICS