The following substances were used as additives: maleated rosin modified with oleic acid, containing maleopimaric acid ( ≈50%) which did not react with maleic anhydride rosin acids; rosin-itaconic ac-id adduct, containing up to ≈50% of citraconopimaric acid as a mixture of two isomers; octylimide of rosin-itaconic acid adduct; imide of maleated rosin and aniline, containing up to ≈50% of N-phenylimide of maleopimaric acid; imidoamide of maleated rosin and aniline, containing maleo-pimaric acid anilide N-phenylimide; imidoamide of maleated rosin and p-anisidine, containing
maleopimaric acid p-methoxyphenylamide N-( p-methoxyphenyl)imide. Their uses as processing aids in rubber compounds based on synthetic isoprene rubber are considered. Processing parameters, such as Mooney viscosity, scorch resistance, kinetic characteristics of vulcanization of the rubber mixtures with nitrogen adducts of rosin are investigated
