Hexaaryl bis-imidazole photoinitiator and application thereof

A technology of hexaarylbisimidazole and photoinitiator, applied in optics, optical components, optomechanical equipment, etc., can solve problems such as non-compliance with application requirements, inability to effectively reduce development waste, inverted trapezoid, etc.

Pending Publication Date: 2020-10-09
CHANGZHOU ZHENGJIE INTELLIGENT MFG TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The object of the present invention is firstly to provide a kind of hexaaryl bis-imidazole photoinitiator, to solve the problem that existing photoinitiators of this type appear inverted trapezoid when used in high-precision circuits, etc. do not meet the application requirements, and the development waste cannot be effectively reduced, etc. question

Method used

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  • Hexaaryl bis-imidazole photoinitiator and application thereof
  • Hexaaryl bis-imidazole photoinitiator and application thereof
  • Hexaaryl bis-imidazole photoinitiator and application thereof

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Embodiment Construction

[0016] Based on the purpose of the present invention, various aspects are described in more detail below.

[0017] The terms "sludge" and "developer litter" as used herein refer to material that accumulates in the developer solution, which is insoluble in the developer solution and redeposits on the developed substrate, thereby reducing the efficiency of the developer solution.

[0018]

[0019] As mentioned above, the hexaarylbisimidazole photoinitiator of the present invention is prepared through the following steps:

[0020] (1) Aromatic aldehydes represented by general formula (I) and aromatic aldehydes represented by general formula (II) undergo condensation and oxidation reactions to obtain benzil compounds; The aromatic aldehyde shown generates monoimidazole compound M by ring-forming reaction;

[0021] (2) aromatic aldehydes shown in general formula (Ⅳ) and aromatic aldehydes shown in general formula (Ⅴ) are through condensation, oxidation reaction, obtain benzil co...

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Abstract

The invention discloses a hexaaryl bis-imidazole photoinitiator. The molar ratio of a red shift substituent group in all substitutable sites of the hexaaryl bis-imidazole photoinitiator is 6-16%. Whenthe photoinitiator is applied to a photosensitive resin composition, the photoinitiator is moderate in sensitivity, good in solubility and excellent in resolution ratio and developability, inverted trapezoids cannot appear during development, the photoinitiator has good hydrophilicity, the amount of sludge in a developing solution during recycling can be remarkably reduced, and the developing solution can be repeatedly and effectively used for multiple times. The invention also provides a photosensitive resin composition containing the photoinitiator, and an application of the composition.

Description

technical field [0001] The invention belongs to the field of organic chemistry, and in particular relates to a hexaarylbiimidazole photoinitiator, a photosensitive resin composition containing the photoinitiator and applications thereof. Background technique [0002] With the miniaturization of precision electronic equipment, the photosensitive resin composition has become a research hotspot, and the influence of photoinitiator on the sensitivity, solubility, hydrophilicity, resolution and developability of the photosensitive resin composition is the focus of research. The most important. As an essential component in the photosensitive resin composition, the photoinitiator is usually required to have high initiation efficiency, excellent solubility, excellent hydrophilicity and the like. However, it has been found in the application that not all physical and chemical indicators are as high as possible. For example, as the application becomes more and more refined, the high ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07D233/88G03F7/027G03F7/004G02F1/1335G02B1/04
CPCC07D233/88G03F7/027G03F7/004G03F7/0007G02B1/04G02F1/133514G02F1/1335C08F2/50C07D233/64
Inventor 钱晓春杨金梁严春霞
Owner CHANGZHOU ZHENGJIE INTELLIGENT MFG TECH CO LTD
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