A coating composition for applying to a substrate and containing a resinous binder with fluorescent colorants in an upper layer and light-absorbing particles in a lower layer. The coating composition exhibits a first color when exposed to light of a first intensity, the first color being dominated by...http://www.google.es/patents/US7384694?utm_source=gb-gplus-sharePatente US7384694 - Coating composition with flourescent colorants having color effect dependent on light intensity
Coating composition with flourescent colorants having color effect dependent ...
