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

Cyclic acetal base-containing thioxanthone photo initiator and preparation method thereof

A technology of thioxanthone and xanthone light, which is applied in the field of thioxanthone photoinitiator and its preparation, can solve problems such as needs, and achieve the effects of low preparation cost, reduced yellowing and toxicity, and simple synthesis

Inactive Publication Date: 2010-09-01
CHANGZHOU JIESEN CHEM MATERIAL TECH +1
View PDF0 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to overcome the above-mentioned defects, the technical problem to be solved in the present invention is to provide a thioxanthone photoinitiator that does not require an amine co-initiator for the existing thioxanthone photoinitiators. Initiator

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
  • Cyclic acetal base-containing thioxanthone photo initiator and preparation method thereof
  • Cyclic acetal base-containing thioxanthone photo initiator and preparation method thereof
  • Cyclic acetal base-containing thioxanthone photo initiator and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

Embodiment 2

Embodiment 3

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 the technical field of photo initiators, in particular to a hioxanthone photo initiator and a preparation method thereof. The cyclic acetal base-containing thioxanthone photo initiator has a chemical structural formula shown in the specification, wherein n=0 or 1; and R=H, CH3, CH2CH3, CH2CH2CH3, CH2CH2CH2CH3, C(CH3)3, CHO, COOH, or OH, C1, F or I. The preparation method comprises the following steps of: adding one molar portion of 2-mercaptobenzoic acid into five mol portions of 1, 3-benzodioxole pentane or 1, 3-benzodioxole hexane and derivatives thereof; slowly dropwise adding concentrated acid, wherein the volume of the concentrated acid is 1.5 times the molar portion of 2-mercaptobenzoic acid calculated by L; reacting for 1 to 24 hours at the temperature of 0 to 70 DEG C; carefully pouring the mixture to boiling water , cooling and filtering; recrystallizing by utilizing a component solvent of dioxane and water; and drying in vacuum to obtain the cyclic acetal base-containing thioxanthone.

Description

technical field The invention relates to the technical field of photoinitiators, in particular to a thioxanthone photoinitiator and a preparation method thereof. Background technique The photopolymerization reaction of multifunctional monomers such as bis(meth)acrylate can quickly form a highly crosslinked polymer network structure. Especially important in areas with high sexual demands. The photoinitiator is a key component of the photocuring system, which is related to whether the oligomer and diluent of the formulation system can quickly change from liquid to solid when light is irradiated. Its basic function characteristics are: the initiator molecule has a certain light absorption ability in the ultraviolet light region (250-400nm) or visible light region (400-800nm), after directly or indirectly absorbing light energy, the initiator molecule transitions from the ground state to the excited singlet state , through intersystem crossing to the excited triplet state; af...

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): C08F2/48C07D495/04
Inventor 恽鹏飞赵贤顾明天顾来福王兵
Owner CHANGZHOU JIESEN CHEM MATERIAL TECH
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