Photolatent effect additives for coatings

Uvlight curing is one of the most economical and environmentally compatible curing technologies known. It has successfully enabled numerous industrial applications over recent decades. However, there still remain challenges that prevent penetration into broader areas of interest. For example, there are intrinsic limitations associated with radical photopolymerization, e.g., oxygen inhibition, insufficient curing of shadow areas, poor curing of thick or highly pigmented coatings, lack of adhesion on certain substrates, etc. Recent developments using photolatent additives have specifically targeted these deficiencies and thus support the expansion of the scope of UV curing technology in industrial applications. In addition, novel photo-induced effects have been developed, which open up new application areas that have been unexploited to date.