Jeff Norris
Technical Market Manager
Lubrizol Advanced Materials
Jeff Norris is Technical Market Manager for Lubrizol’s Hyperdispersants, Surface Modifiers & Specialty Additives in North America. He has 36 years’ experience in coatings and inks additive technology, pigments, pigment dispersion and colorant development; the past 20 years with Lubrizol Advanced Materials, Inc. in Brecksville, Ohio. He earned a BS Chemistry degree from the University of Akron.
Improved, 100%-Active Polymeric Dispersants for UV-Curable and Waterborne Coatings
Development of new anchoring technologies for polymeric dispersants is a challenge considering the various target pigments/particles with surfaces ranging from organic to inorganic, non-polar to polar. Recent efforts have focused on novel dispersant anchor and stabilizing chain combinations for both 100% solids and waterborne applications. This work has resulted in development of new polymers that deliver rapid dispersion, excellent particle size and viscosity stabilization combined with superior final coating properties. These dispersants combine 100% activity with pourable viscosity at room temperature. Supplying dispersants in 100%-active form enables reduced carbon footprint from production to market as well as increasing versatility in different coatings systems, especially UV curable. These biocide-free dispersants improve manufacturing efficiency by enabling higher pigmentation at lower viscosity with greater color development and dispersion stability. In waterborne systems they also demonstrate greater tolerance to challenging coalescing solvents, expanding formulation latitude.