... The disproportionated rosin X grade are used for production of synthetic rubber SBR,NBR, ABS resins etc.disproportionated rosin , rosin , gum rosinDisproportionated ... catalysing by the Pd-C catalysts, mainly used in sythetic rubber, adhesive, pigment,dyestuff surfact treatment, coating, ink, etc. Packing: (1 ...