申请人:Herlihy Lawrence Shaun
公开号:US20050176969A1
公开(公告)日:2005-08-11
Compounds of formula (I):
[in which: R
1
represents a direct bond, an oxygen atom, a group >CH
2
, a sulphur atom, a group >C═O, a group —(CH
2
)
2
— or a group of formula —N—R
a
, where R
a
is hydrogen or an alkyl; R
4
, R
5
, R
6
and R
7
are each hydrogen or various groups or atoms; R
8
, R
9
, R
10
and R
11
are each hydrogen, hydroxy, or alkyl; or R
9
and R
11
form a fused ring system with the benzene rings to which they are attached; R
12
is a direct bond, oxygen atom or methylene; and X is an anion; and esters thereof] are useful as cationic photoinitiators, especially for use in surface coating applications, such as printing inks and varnishes, and which are intended to be cured by polymerisation initiated by radiation.
式(I)化合物:
其中R
1
代表直接键、氧原子、基团 >CH
2
硫原子、基团 >C═O、基团 -(CH
2
)
2
- 或一个式-N-R 的基团
a
其中 R
a
是氢或烷基
4
, R
5
, R
6
和 R
7
均为氢或各种基团或原子; R
8
, R
9
, R
10
和 R
11
各自为氢、羟基或烷基;或 R
9
和 R
11
与它们所连接的苯环形成一个融合环系统;R
12
是直接键、氧原子或亚甲基;X 是阴离子;以及它们的酯]可用作阳离子光引发剂,特别是用于表面涂层应用,如印刷油墨和清漆,并通过辐射引发聚合固化。