Diphenylamine; vulcanising preparations, namely, chemical preparations for vulcanizing; accelerant, namely, chemical preparation for accelerating the process of vulcanization; antioxidant for use in the manufacture of rubber goods; vulcanization accelerators; chemical intermediates for the production of catalysts for synthetic materials, rubber and polymers; antioxidants for use in manufacture; petroleum dispersants; catalysts for use in the oil processing industry; rubber protective agent, n...