Use of 2-(N-methyl-N-phenylamino)-1-phenylethanol as synergist in UV-curing applications

Abstract

2-(N-Methyl-N-phenylamino)-1-phenylethanol in formulations was used as an aminoalcohol to help reduce the effect of oxygen inhibition and to act as synergist with a Type II initiator. When the aminoalcohol in the formulation containing Trimethylolpropane triacrylate (TMPTA) is replaced by the NMDEA at the 10% level, the same amount of cure is obtained after one pass as when 1% aminoalcohol is used. It was found that the aminoalcohol was efficient at reducing oxygen inhibition and act as an excellent synergist for isopropylthioxanthone. (C) 2002 Elsevier Science B.V All rights reserved.