Additives: High-Performance Colorants for Engineering Plastics
Milliken’s new KeyPlast Resist portfolio of bright colorants developed for nylons and other high-heat plastics.
A new spectrum of bright, high-performance colorants for nylons and other high-heat resins used in electrical, automotive and industrial applications has been developed by Milliken & Company, Spartanburg, S.C. Since resins in such demanding applications are subjected to high-temperature processing, steady and reliable performance properties have made the vibrancy of color difficult to achieve. Milliken’s KeyPlast Resist colorants, which will be officially launched at this month’s K 2019, reportedly are specially designed for coloring engineering polymers such as nylons, polyimides, polysulfones, PBT, PEEK, PPO and other high-heat resins and alloys.
The new range of colorants can be used effectively with unfilled, glass-filled, and flame-retardant grades of various nylons including nylon 6, 66, 46 and other high-temperature engineered resins. They are said to deliver the brilliant, consistent colors—including bright orange, yellow, red, blue and green—and the high-end properties that users demand. These colorants reportedly offer improved weather resistance and light fastness, are high purity and perform well in the high-temperature and chemically-reductive conditions typically associated with high-performance polymers. Said Sami T.K. Palanisami, Milliken global product line manager for plastic colorants, “Keyplast Resist meets the strong requirements in another fast-growing application area—that of electrical vehicles and their charging system requirements.”
New materials and processes for injection and blow molding, extrusion, compounding, and thermoforming were discussed at the recent SPE Polyolefins Conference.
The K 2013 show will present a broad range of engineered plastics materials, including thermoplastic composites, as well as additives. Automotive and electronic applications will be the main targets, as well as medical, packaging, lighting, and construction.
While the nylon 66 tightness may not prove long-lasting, resin suppliers, compounders, and distributors have mobilized to offer processors an array of ‘replacement’ materials.