COMPOSITION BASED ON 4-NITROSODIPHENYLAMINE FOR MODIFYING RUBBER COMPOUNDS AND RUBBERS AND FOR STABILIZING RUBBERS, AND METHOD FOR PREPARING SUCH COMPOSITION Russian patent published in 2000 - IPC

FIELD: rubber industry. SUBSTANCE: composition is prepared by neutralizing 4-nitrosodiphenylamine alkali metal salt with mineral acid or carbon dioxide at stirring. Suspension is heated to 55 C and special-destination agent N-phenyl-N'-dimethylbutyl- p-phenylenediamine is added to provide its final concentration 30 to 70%. Mixture is then cooled to 12 C and dried. EFFECT: prevented agglomeration of composition and increased its stabilization capacity for rubber compounds and rubbers. 2 cl, 1 tbl, 4 ex