High Throughput Screening of Waterbased Coating Formulations
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1159-G06-03
High Throughput Screening of Waterbased Coating Formulations John Roper III,1 Michael Johnson,1 Melinda Keefe,1 Jodi Mecca,2 and Richard Cesaretti2 1 2
Dow Coating Solutions, Dow Chemical Company, Midland Michigan 48674, USA. New Products Research, Dow Chemical Company, Midland Michigan 48674, USA.
ABSTRACT Since 1998, Dow has been actively developing and applying high throughput research (HTR) methodologies to increase the speed to market and the probability of successful product introductions. Initially Dow implemented this approach in the area of homogeneous catalysis. Based upon the success in this area, high throughput methods have been expanded into other research areas such as waterborne coatings. Paint formulations offer an excellent opportunity to use the strengths of high throughput research to understand how complex interactions between many components affect final properties. High throughput tools enable the rapid and reproducible development of paints, preparation of coating on substrates, and evaluation of performance. Rapid formulation and testing allows the interactions between formulation variables to be investigated in much more depth and breadth than has been possible in the past. Finally, statistical analysis and data mining tools can be used to optimize a desired balance of properties within customer defined constraints. This paper presents an example of using Dow’s HTR coatings workflow to improve properties for low VOC / low odor architectural coatings.
INTRODUCTION One of the major problems associated with formulating coatings is the complexity of the formulation composition and the resulting difficulty in understanding the effect of these compositions on the range of coating performance properties. Due to time and cost pressures, formulators are unwilling to spend significant resources investigating a new material for a given application unless initial positive results are observed in a screening formulation. At a high level, formulators want their material suppliers to develop materials that can be formulated to give a coating product that addresses unmet market needs. Suppliers that demonstrate both synthesis and formulation knowledge to help their customers improve the probability of commercial success have a competitive advantage. Recent advances in electronic data capture, mining, and modeling for complex systems, coupled with rapid research and data collection methods have enabled high throughput (HT) approaches for developing formulation science in coatings. Since 1998 Dow has invested heavily in developing and integrating these capabilities to create a flexible, robust high throughput capability for coatings development. In the 1990’s high-throughput (HT) started as a research tool in the pharmaceutical industry as a new approach to drug discovery. Large numbers of small molecule actives could be synthesized and analyzed much more rapidly than an organic chemist at the
bench could achieve. Based on this initial success, high-throughput instrumentation, software, and
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