Zeon Corp. (TYO:4205) is looking to boost production capacity for its Zetpol series of hydrogenated nitrile rubber (HNBR). Plans here are to remove bottlenecks from the production facilities of Zeon’s Takaoka Plant in Toyama. This is set to provide a roughly 10 percent capacity increase to the plant’s 4,000-ton annual capacity. Efforts toward this end will begin this autumn, when…