Spartech Corporation (Spartech), incorporated on April 23, 1968, together with its subsidiaries, is an intermediary processor of engineered thermoplastics, polymeric compounds and concentrates. The Company converts base polymers or resins purchased from commodity suppliers into extruded plastic sheet and rollstock, thermoformed packaging, specialty film laminates, acrylic products, specialty plastic alloys, color concentrates and blended resin compounds. Spartech operates into three segments: Custom Sheet and Rollstock, Packaging Technologies, and Color and Specialty Compounds. Its products are sold to original equipment manufacturers and other customers in a range of end markets. Effective March 13, 2013, PolyOne Corporation acquired the interest of the Company.