Nano-dispersion on film absorbs infrared.PET window film coated with a 6-micron layer containing 30% to 60% by weight infrared-absorbing nanoparticles retains heat while transmitting visible light Visible Light Our eyes perceive a tiny sliver of the electromagnetic spectrum. The wavelengths from (approximately) 400 to 750 nanometers provide us with our physical view of the universe.. CPFilms in Martinsville Martinsville, city (1990 pop. 16,162), seat of Henry co., S Va., in the Blue Ridge foothills near the N.C. line; founded 1793, inc. as a city 1928. Tobacco is processed, and furniture, prefabricated homes, textiles, clothing, wood and plastic products, machinery, chemicals, and transportation equipment are manufactured., Va., began producing IR-absorbing films three years ago for car windows in the Far East. It has since extended the technology to its Vista architectural window films with different levels of visible-light transmission. CPFilms' parent company, Solutia, has patents on IR-absorbing layers of lanthanum lanthanum /lan·tha·num/ (La) (lan´thah-num) a chemical element, at. no. 57. lan·tha·num (l  n th hexaboride, antimony-tin oxide, and indium-tin oxide. Use of these metals in nanoparticle form is CPFilms' development (U.S. Patent 6663950, 2003). Tel: (276) 627-3000 * www.cpfilms.com
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