申请人:Lachowicz Artur
公开号:US20050256218A1
公开(公告)日:2005-11-17
A photoinitiator is provided which exhibits excellent photosensitivity, yields colorless products, and is usable in thick layer UV curable coating. A novel chemical compound is also provided which is usable for the photoinitator. Photocurable composition is also provided which has these properties. The photoinitiator consists essentially of a compound having a molecular weight of 1000 or less, and having a chemical structure represented by the following formula (1),
wherein R
3
and R
4
independently denote a specific alkyl group, and R
1
and R
2
independently denote an electron attracting group or a specific alkyl group, and weight percentage of a chemical structure element represented by the following formula (2),
which is expressed in formula (1) based on the total molecular weight of the compound, is 17% to 54% by mass.
提供了一种光引发剂,其具有优异的光敏度,产物无色,并可用于厚层紫外线固化涂层。还提供了一种新的化合物,可用于制备光引发剂。同时提供了具有这些特性的光固化组合物。该光引发剂基本上由分子量小于或等于1000的化合物组成,其化学结构由以下公式(1)表示,其中R3和R4独立地表示特定的烷基,R1和R2独立地表示电子吸引基团或特定的烷基,根据化合物的总分子量,以下公式(2)所表示的化学结构元素的重量百分比在17%至54%之间。