Heritage Plastics, Inc.

Colorants were the most numerous class of additives making news at the huge triennial plastics exhibition last month in Chicago. Some of the new colorants were aimed at specialized applications, from natural-fiber composites to laser marking, while others were for aesthetic special effects, such as color shifts and diamond-like sparkle.

Filler isn’t a bad word in T-shirt bags and can liners any more.

Molders, extruders, and compounders found a host of new additives, including colorants, compatibilizers, impact modifiers, foaming agents, and processing aids.