1. Ford, C.; Mc Climans, P.Curable coating composition for forming impact resistant, abrasion and/or scratch resistant photochromic article, comprises unblocked polyisocyanate terminated polyurethane pre-polymer, polyol, and photochromic agent. Patent numbers US2008067701-A1, WO2008031879-A1, EP2066714-A1, US7662433-B2, Mar. 20, 2008.
2. Wiand, R. C.Glass laminate for use in e.g. automotive vehicle, has glass sheet with surface having optically clean resin layer bonded with adhesive layer, where clean resin or pressure sensitive adhesive has photochromic moiety. Patent numbers WO2008020829-A2, WO2008020829-A3, Feb. 21, 2008.
3. Potential of phenothiazine as a thin film dosimeter for UVA exposures
4. Heteropoly and Isopoly Oxometalates