申请人:Agfa Graphics N.V.
公开号:EP1927632A1
公开(公告)日:2008-06-04
A radiation curable composition comprising a curable compound, a photo-initiator and a co-initiator characterized in that said co-initiator has a structure according to Formula I
A-L-B Formula I
wherein
A represents a structural moiety comprising an aromatic tertiary amine;
B represents a structural moiety comprising at least one aliphatic tertiary amine;
L represents a divalent linking group positioning the nitrogen atom of the aromatic amine of the structural moiety A and the nitrogen of at least one aliphatic amine of the structural moiety B in a 1-3 to 1-23 position;
with the proviso that at least one aromatic and at least one aliphatic amine each have at least one alfa-hydrogen.
一种可辐射固化的组合物,包括一种可固化化合物、一种光引发剂和一种助引发剂,其特征在于所述助引发剂具有符合式 I 的结构
式 I
其中
A 代表由芳香族叔胺组成的结构基团;
B 代表由至少一个脂肪族叔胺组成的结构分子;
L 代表二价连接基团,该基团位于结构分子 A 的芳香族胺的氮原子和结构分子 B 的至少一个脂肪族胺的氮原子的 1-3 至 1-23 位;
但至少一个芳香族胺和至少一个脂肪族胺各自至少有一个α-氢。