申请人:Agfa Graphics N.V.
公开号:EP2199856A1
公开(公告)日:2010-06-23
A radiation curable composition comprising a cationic photoinitiator according to Formula (I) or (II):
wherein :
R1, R2 and R3 independently represent a group selected from the group consisting of an aryl group and a heteroaryl group, with the proviso that R1, R2 and R3 are each substituted by at least one substituent comprising at least one cationically polymerizable group selected from the group consisting of an alkenyl ether, an epoxide and an oxetane;
P and Q independently represent the necessary atoms to form a substituted or unsubstituted 5 or 6-membered aromatic or heteroaromatic ring, with the proviso that at least one of P,Q and L is substituted by at least one substituent comprising at least one cationically polymerizable group, selected from the group consisting of an alkenyl ether, an epoxide and an oxetane;
L represents a group selected from the group consisting of a direct bond, 0, S, SO, SO2, CR5R6, C(=O), S(=O), C(NR8) and NR7;
R5 and R6 independently represent a group selected from the group consisting of a hydrogen, a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkenyl group a substituted or unsubstituted alkynyl group, a substituted or unsubstituted aralkyl group, a substituted or unsubstituted alkaryl group, a substituted or unsubstituted aryl group, a substituted or unsubstituted heteroaryl group, a halogen, an alcohol, an ether, an ester, an amine, an amide, a carboxylic acid, a thiol and thioether;
R5 and R6 may represent the necessary atoms to form a five or six membered ring;
R7 and R8 independently represent a group selected from the group consisting of a hydrogen, an substituted or unsubstituted alkyl group, a substituted or unsubstituted alkenyl group a substituted or unsubstituted alkynyl group, a substituted or unsubstituted aralkyl group, a substituted or unsubstituted alkaryl group, a substituted or unsubstituted aryl group, a substituted or unsubstituted heteroaryl group and an acyl group; and
Y- represents a counter ion to compensate for the positive charge of the sulfonium compound.
一种辐射固化组合物,包含符合式 (I) 或 (II) 的阳离子光引发剂:
其中 :
R1、R2 和 R3 独立地代表选自由芳基和杂芳基组成的组,但 R1、R2 和 R3 各自被至少一个取代基取代,该取代基包含选自由烯基醚、环氧化物和氧杂环丁烷组成的组的至少一个阳离子可聚合基团;
P 和 Q 各自代表形成取代或未取代的 5 或 6 元芳香族或杂芳环所需的原子,但 P、Q 和 L 中至少有一个被至少一个取代基取代,该取代基包含至少一个可阳离子聚合的基团,该基团选自由烯基醚、环氧化物和氧杂环丁烷组成的组;
L 代表选自由直接键、0、S、SO、SO2、CR5R6、C(=O)、S(=O)、C(NR8) 和 NR7 组成的组;
R5 和 R6 独立地代表选自以下组别的基团:氢、取代或未取代的烷基、取代或未取代的烯基、取代或未取代的炔基、取代或未取代的芳烷基、取代或未取代的烷芳基、取代或未取代的芳基、取代或未取代的杂芳基、卤素、醇、醚、酯、胺、酰胺、羧酸、硫醇和硫醚;
R5 和 R6 可代表形成五或六员环所需的原子;
R7 和 R8 独立地代表选自以下组成的基团:氢、取代或未取代的烷基、取代或未取代的烯基、取代或未取代的炔基、取代或未取代的芳基、取代或未取代的烷芳基、取代或未取代的芳基、取代或未取代的杂芳基和酰基;以及
Y- 代表补偿锍化合物正电荷的反离子。