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US 2015/0307481 A1Published application
Carbazole ketoxime ester high-photosensitivity photoinitiator
AssigneeChangz Pioneer Electronic Materials Co., Ltd
InventorXiaochun Qian
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Abstract
A carbazolyl ketoxime ester type photoinitiator having a structure represented by the formula (I) is disclosed. This photoinitiator has excellent application performance and extremely high photosensitive property, and in particular under exposure lamp sources such as LED, LDI, etc., and it exhibits very high photosensing activity, which is obviously superior to the current products.
Claims9
A carbazolyl ketoxime ester type photoinitiator, having a structure represented by the formula (I) of:
- wherein,
- R1 is
- n=1˜5, m=1˜6;
- R2 is a C1˜C20 linear or branched alkyl group;
- R3 is a C1˜C10 alkyl group, a C3˜C8 cycloalkyl group, or a cycloalkylalkyl group consisting of a C1˜C4 alkyl group and a C3˜C8 cycloalkyl group, or a phenyl group optionally substituted by an alkyl group;
- Ar is a S or O-containing heterocyclic group having an optional substituent, or a substituted aryl group having an O, S, or N atom-containing substituent.
3 more elements
Dependencies are inferred from the claim text.