Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Fluorescent whitening agent containing p-aminoacetophenone group quaternary ammonium salt, synthesis and use thereof

A technology of aminoacetophenone and fluorescent whitening agent, which is applied in the direction of adding luminescent/fluorescent substances, bleaching products, dyes of washing compositions, etc., can solve the problems of easy precipitation, strong acid resistance and poor light fastness, etc. The effect of stability, expanding the scope of application, improving adhesion and washing fastness

Inactive Publication Date: 2008-11-05
SHANDONG UNIV
View PDF3 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, most triazine-DSD acid fluorescent whitening agents have the disadvantages of strong acid resistance and light fastness, and are easy to precipitate under acidic conditions.

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
  • Fluorescent whitening agent containing p-aminoacetophenone group quaternary ammonium salt, synthesis and use thereof
  • Fluorescent whitening agent containing p-aminoacetophenone group quaternary ammonium salt, synthesis and use thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] In a 500ml three-necked flask (ice-water bath), add a mixture of 60g deionized water and 180g ice and 7.40g cyanuric chloride, keep the temperature at 4°C, stir vigorously to disperse evenly, add 5.40g p-aminoacetophenone, and adjust the pH value At about 2.0, react for 2.5 hours and then rise to about 10°C; raise the temperature to 50°C in a constant temperature water bath, add 7.39g of DSD acid, adjust the pH value to 4.2, and react for 2.0h; then raise the temperature to 85°C, add 5.96g of triethanolamine , adjust the pH value to 8.0, react for 2.5 hours, and dry to obtain a solid product that is a quaternary ammonium salt type fluorescent whitening agent, with a yield of 88.0%.

Embodiment 2

[0018] In a 500ml three-neck flask (ice-water bath), add a mixture of 60g deionized water and 180g ice and 7.40g cyanuric chloride, keep the temperature at 3°C, stir vigorously to disperse evenly, add 5.40g p-aminoacetophenone, and adjust the pH value At about 2.0, react for 2.5 hours and then rise to about 10°C; raise the temperature to 40°C in a constant temperature water bath, add 7.39g of DSD acid, adjust the pH value to 3.9, react for 2.0h; then raise the temperature to 82°C, add 4.10g of triethyl Amine, adjust the pH value to 8.1, react for 2.5 hours, and dry to obtain a solid product, which is a quaternary ammonium salt type fluorescent whitening agent, with a yield of 87.2%.

Embodiment 3

[0020] In a 500ml three-neck flask (ice-water bath), add a mixture of 60g deionized water and 180g ice and 7.40g cyanuric chloride, keep the temperature at 3°C, stir vigorously to disperse evenly, add 5.40g p-aminoacetophenone, and adjust the pH value At about 2.0, react for 2.5 hours and then rise to about 10°C; raise the temperature to 45°C in a constant temperature water bath, add 7.39g of DSD acid, adjust the pH value to 4.2, react for 2.0h; then raise the temperature to 80°C, add 4.61g N- Methylmorpholine, adjust the pH value to 8.0, react for 2.5 hours, and dry to obtain a solid product that is a quaternary ammonium salt-type fluorescent whitening agent, with a yield of 78.7%.

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 invention relates to a series of whitening agents containing p-aminoacetophenone radical hyamine fluorescence as well as synthesis and applications thereof; the series of whitening agent are mainly applied to paper making, dope, printing ink and weaving. The invention adopts the following synthetic steps of: a, using cyanuric chloride to react with p-aminoacetophenone for 2.5h under the temperature of 0 to 5 DEG C, controlling the pH between 1.8 to 2.1 and synthesizing a primary condensation product; b, using the primary condensation product to react with 4, 4'-Diaminostilbene-2, 2'-disulfonic acid for 2.0h under the temperature of 40 to 50 DEG C, controlling the pH between 3.8 to 4.2 and synthesizing a secondary condensation product; c, using the secondary condensation product to react with a series of tertiary amine compounds for 2.5h under the temperature of 80 to 85 DEG C, controlling the pH between 7.8 to 8.2 and synthesizing a series of p-aminoacetophenone radical hyamine triazine-DSD acid fluorescence whitening agents. The application result shows that; the whitening agents not only can be used under neutral conditions and alkaline conditions, but also has higher dying rate under acidic conditions and better whitening effect.

Description

technical field [0001] The invention relates to the technical field of fine chemicals, and provides a quaternary ammonium salt-type fluorescent whitening agent containing p-aminoacetophenone groups and its synthesis and application. Background technique [0002] Triazine-DSD acid fluorescent whitening agent, that is, triazine aminostilbene fluorescent whitening agent, is widely used in papermaking, textile, coating, detergent and other industries because of its high cost performance, and has become a research topic at home and abroad. And one of the most produced fluorescent whitening agents. The traditional triazine-DSD acid fluorescent whitening agent, due to the good water solubility of the anionic sulfonic acid group, has poor affinity with polyamide fiber and acetate fiber of hydrophobic fabrics, the dyeing rate is not high, and the whitening effect is average. At the same time, the traditional fluorescent whitening agent has poor acid resistance, is easy to precipitat...

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
Patent Type & Authority Applications(China)
IPC IPC(8): C07D251/70D21H21/30D06L3/12C11D3/42D06L4/60
Inventor 曹成波陶武松胡顺鹏
Owner SHANDONG UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com