Price increases to come into effect at the beginning of July Tokyo – Zeon Corp. has announced plans to increase selling prices for its synthetic rubbers as well as synthetic latex, effective 1 July. In a 13 June statement, the Japanese supplier said prices for its Nipol-branded rubbers will increase as follows: Emulsion styrene-butadiene rubber (ESBR) $0.18/kg Butadiene rubber $0.32/kg Nitrile butadiene rubber (NBR) $0.45/kg NBR/PVC $0.45/kg Epichlorohydrin rubber (ECO) $0.85/kg 2. Separately Zeon announced that it was increasing SBR latex prices by $0.65 - $1.10/kg (dry basis) and NBR latex by $0.65 – $0.85/kg (dry basis), effective 1 July.