Idemitsu Restarts SPS Production

Idemitsu Kosan Co., Ltd., Tokyo, has resumed full-scale production of syndiotactic polystyrene (SPS) resin at its 11-million-lb/yr Chiba plant in Japan.

Idemitsu Kosan Co., Ltd., Tokyo, has resumed full-scale production of syndiotactic polystyrene (SPS) resin at its 11-million-lb/yr Chiba plant in Japan. SPS is a clear, heat-resistant, crystalline engineering thermoplastic invented by Idemitsu in 1985. The company shut its plant in 2000 in favor of joint production with Dow Chemical Co., Midland, Mich., until Dow withdrew from SPS in 2004. A broad line of Xarec SPS and SPS/PS blends is available from Idemitsu Chemicals USA Corp., Southfield, Mich.