Chinese Academy of Sciences

Hubei Gurun Technology Co., Ltd.

Yingquan Zou

Zheng Wang

Ping Chen

Jian Zhao

Ming Gao

Yangyang Xin

Fang Xing

Shuyun Zhou

Yulian Pang

Jinying Liu

Shuheng Fan

Shizhuo Xiao

Yejia Guo

The present invention relates to a coumarin (keto) oxime ester compound of formula (I), wherein n and R, R, R, R, R, R, and Rare as defined in the specification. The compound has strong ultraviolet absorption in the range of 300 to 450 nm. After absorbing light energy, it can quickly transfer energy and continuously initiate polymerization. It has obvious advantages in terms of photosensitivity and pattern integrity, and is very suitable for radiation curing by UV-LED light source. In addition, the compound of formula (I) also has good thermal stability. The present invention also relates to a method for preparing the compound of formula (I) and use of the compound. The compound is suitable as a photoinitiator in a UV-LED light curing system and is suitable for the radiation wavelength of UV-LED light curing. 

Coumarin oxime ester compounds, preparation and use thereof

Disclosed is a heat-sensitive processless planographic printing plate material containing a thermosensitive protection layer. The planographic printing plate material sequentially comprises a supporting body, a hydrophilic layer, a heat-sensitive layer and a thermosensitive protection layer from the bottom up. The thermosensitive protection layer therein can not only isolate oxygen and protect the heat-sensitive layer from oxygen inhibition, but can also sense heat and allow a polymerization reaction to take place. Thus the binding force between same and the next layer is improved, so that the precision of printing plate images is high, the development performance is good, and the pressrun is high.

Heat-sensitive treatment-free planographic printing plate material containing thermosensitive protection layer and application thereof

Growing community of inventors

Beijing, China

Yingquan Zou