Astramol polypropyleneimine dendrimers as Norrish Type II amine synergists
2000
Amine synergists as part of a Norrish Type II photoinitiating system are widely employed in UV-curable coatings for various applications. In most of these applications they serve a dual role ie as initiator and as oxygen scavenger. Dimethylethonolamine is one of the more frequently employed aliphatic amines. However, this amine is a highly volatile. Astromol™ polypropyleneimine dendrimers have a very low volatility and are employed successfully as aliphatic amine synergists in UV-curable products.
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