Unlock instant, AI-driven research and patent intelligence for your innovation.

Benzene ring-containing cross-linking agent and preparation method thereof

A technology of cross-linking agent and benzene ring, applied in the field of cross-linking agent containing benzene ring and its preparation, can solve the problems of few types of cross-linking agent, low purity, inability to meet the photolithography process, etc., and improve light absorption performance and purity. High, Moderate Yield Effects

Pending Publication Date: 2021-08-06
NINGBO NATA OPTO ELECTRONICS MATERIAL CO LTD
View PDF2 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the field of photoresist technology, cross-linking agents are used in photolithography because of their unique light-absorbing properties, especially cross-linking agents containing benzene ring structures, which can greatly improve the light-absorbing properties of photolithography. During the photolithography process, the types of crosslinking agents used are less and the purity is lower, which cannot meet the needs of the photolithography process

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Benzene ring-containing cross-linking agent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0022] The invention provides a cross-linking agent containing a benzene ring and a preparation method thereof, wherein the method comprises: uniformly mixing tetramethylol glycoluril, a benzene series containing a hydroxyl group, and an alcohol compound in an organic solvent, Add an acid catalyst under stirring and carry out a temperature rise reaction. After the reaction is completed, lower it to room temperature to obtain a reaction solution; separation to obtain a cross-linking agent solution containing benzene rings; removing the solvent in the cross-linking agent solution containing benzene rings to obtain a high-purity cross-linking agent containing benzene rings.

[0023] Specifically, the benzene series containing hydroxyl group is one or more of phenol and benzyl alcohol, the alcohol compound is one or more of methanol and ethanol, and the acid catalyst is an inorganic acid. Described organic solvent is ethyl acetate, methylene dichloride, one or more in normal hexan...

Embodiment 1

[0028] Add 24.6g of tetramethylol glycoluril, 18.8g of phenol, 7.2g of methyl alcohol, and 100g of normal hexane in a four-necked flask equipped with condensing reflux, and then add 2ml of concentrated hydrochloric acid under stirring. At the same time, the temperature was raised to 50°C for constant temperature reaction for 3 hours. After the reaction, the temperature was lowered to room temperature, and then the pH of the reaction solution was adjusted to 7 with NaOH aqueous solution, and the n-hexane in the reaction solution was removed. Carry out column treatment in petroleum ether: ethyl acetate = 100:1 as developing solvent, and finally remove the solvent from the reaction solution after passing the column to obtain 38 g of colorless viscous liquid, which is colorless and viscous The liquid is 1,3-diphenoxy-4,6-dimethoxymethyl glycoluril with a purity of 97.73% and a yield of 85.9%.

Embodiment 2

[0030] Add 24.6g of tetramethylol glycoluril, 21.6g of benzyl alcohol, 7.2g of methanol, and 100g of n-hexane into a four-necked flask equipped with condensing reflux, and then add 2ml of concentrated sulfuric acid under stirring At the same time, the temperature was raised to 50°C for a constant temperature reaction for 3 hours. After the reaction was completed, the temperature was lowered to room temperature, and then the pH of the reaction solution was adjusted to 7 with NaOH aqueous solution, and the n-hexane in the reaction solution was removed. The solution was subjected to column treatment with petroleum ether: ethyl acetate = 100:1 as a developing solvent, and finally the reaction solution after passing the column was subjected to solvent removal to obtain 30 g of a colorless viscous liquid. The thick liquid is 1,3-diphenoxy-4,6-dimethoxymethyl glycoluril with a purity of 98.56% and a yield of 63.8%.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The embodiment of the invention discloses a benzene ring-containing cross-linking agent and a preparation method thereof, wherein the method comprises the steps: uniformly mixing tetramethylol acetylenediurea, a hydroxyl-containing benzene series and an alcohol compound in an organic solvent, adding an acid catalyst in a stirring state, carrying out a heating reaction, and cooling to room temperature after the reaction is completed to obtain a reaction solution; adjusting the pH value of the reaction solution to be neutral, and performing polar separation on the reaction solution by using a developing solvent to obtain a cross-linking agent solution containing a benzene ring; and removing the solvent in the cross-linking agent solution containing the benzene ring to obtain the benzene ring-containing cross-linking agent. The benzene ring-containing cross-linking agent prepared by the method is high in purity and moderate in yield, can be used in the technical field of photoresists, improves the light absorption performance of a photoetching process, and greatly meets the requirements of the photoetching process.

Description

technical field [0001] The invention relates to the technical field of crosslinking agents, in particular to a crosslinking agent containing a benzene ring and a preparation method thereof. Background technique [0002] Cross-linking agent, also known as bridging agent, is an important part of polyhydrocarbon photoresist. The photochemical curing of photoresist depends on the cross-linking agent with dual photosensitive functional groups to participate in the reaction. After exposure to the agent, diradicals are generated and interact with polyhydrocarbon resins to form bridges between polymer molecular chains and become insoluble substances with three-dimensional structures. In the field of photoresist technology, cross-linking agents are used in photolithography because of their unique light-absorbing properties, especially cross-linking agents containing benzene ring structures, which can greatly improve the light-absorbing properties of photolithography. When the photol...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C07D487/04G03F7/004
CPCC07D487/04G03F7/004
Inventor 许东升顾大公齐国强陈伟琴毛智彪许从应
Owner NINGBO NATA OPTO ELECTRONICS MATERIAL CO LTD
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com