Infrared-Reflective Coatings – April 2013
F Wen, DE Busch, RL Fricker, R Provins, BD Kiessling, DE Bell- US Patent 20,130,089,706, 2013
A composition includes polymer and dispersed infrared-reflective clusters of titanium dioxide primary particles. The titanium dioxide primary particles are cemented together with precipitated silica and/or alumina to form clusters. The titanium dioxide primary particles have an average particle diameter in the range of from about 0.15 to about 0.35 micron, while the clusters of titanium dioxide primary particles have an average cluster diameter in the range of from about 0.38 to about 5 microns and a geometric standard deviation (GSD) in the range of from about 1.55 to about 2.5… In the sample bottles containing TIONA® 696 finished product, Black 411A ranging from 8.0 grams to 11.0 grams were added. Reflectance Measurements. UV-VIS-NIR spectrometers from StellarNet Inc. were used to perform the reflectance measurement of the coating panels.
