Zeon has acquired ISCC PLUS certification, an international certification system for sustainable products, at four of its Japanese production facilities, namely the Takaoka, Kawasaki, Tokuyama and Mizushima plants. The certified products include butadiene, synthetic latex, HNBR (hydrogenated nitrile rubber), BR (butadiene rubber), IR (isoprene rubber), NBR (acrylonitrile butadiene rubber), E-SBR (emulsion polymerization styrene butadiene rubber) and S-SBR (solution polymerization styrene…