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

Optical material polymer composition containing thioepoxy compound and optical material manufacturing method

A technology of thioepoxy and optical materials, which is applied in optics, optical components, instruments, etc., can solve the problems of difficult hardening, low lens quality, unhardened polymerization of optical materials, etc., and achieve the goal of increasing yield and reducing production costs Effect

Inactive Publication Date: 2016-11-30
KOC SOLUTION
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Thioepoxy-based lenses or thioepoxy-based lenses obtained by copolymerizing thioepoxy and thiourethane are difficult to harden when the polymeric composition is injected and polymerized, resulting in uneven polymerization. , causing pulsation or cloudiness, bubbles, etc., and the problem of low quality of the lens often occurs
This lack of hardening and the resulting uneven polymerization will reduce the yield of the lens and become a factor that increases the production cost
At present, one of the main concerns in the field of lenses is to reduce production costs, and the problems of unhardened and uneven polymerization in optical materials containing thioepoxy compounds urgently need to be improved

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
  • Optical material polymer composition containing thioepoxy compound and optical material manufacturing method

Examples

Experimental program
Comparison scheme
Effect test

Synthetic example 1

[0041] Synthesis Example 1: Bis(3-chloro-2-hydroxylpropyl) sulfide (bis(3-chloro-2-hydroxylpropyl) sulfide) synthesis

[0042] After adding epichlorohydrin (5563g, 60.12mol) and methanol (2500g) to a 10-liter reactor, the reaction temperature was adjusted to 6°C. When the reaction temperature reached 6°C, caustic soda (50%) was added. aq,5g). Add NaSH.xH to ​​another 10 liter reactor 2 O (70% NaSH, 3660g, 45.75mol), methanol (1000g) and water (500g) are completely melted by stirring, then slowly add hydrochloric acid dropwise and add the generated hydrogen sulfide to the epichlorohydrin solution to obtain di( 3-chloro-2-hydroxypropyl) sulfide. The end point of the reaction is when the final product is confirmed by GC, epichlorohydrin and 3-chloro-2-hydroxy-propyl-1-thiol compound disappear completely, and bis(3-chloro-2-hydroxypropyl) sulfide is formed Point in time. If 3-chloro-2-hydroxy-propyl-1-thiol is present, the relative content is calculated by GC, and the reaction is...

Synthetic example 2

[0043] Synthesis Example 2: Synthesis of bis-(2,3-epithiopropyl) sulfide (pH 2.5)

[0044] Add bis(3-chloro-2-hydroxypropyl) sulfide (1072.48 g, 4.89 mol), toluene (toluene) 1300 g, and methanol 800 g to a 10 liter reaction vessel, stir, and adjust the reaction temperature to 30°C. When reaching 25°C, NaOH (50% aq., 783.08g, 9.78mol) was added dropwise, and the reaction temperature during the dropwise addition was carried out at 35-37°C, and the temperature was maintained and the reaction proceeded. The dripping is carried out within 1 hour, and then the fermentation is kept at 37°C for about 30 minutes. After the fermentation, 2000g of toluene is added and stirred for about 10 minutes for stratification. The supernatant organic matter is washed twice with water. Limit the removal of water, add 400g of methanol to the organic solution with several layers again, stir, add thiourea (1117.65g, 14.30mol) and anhydrous acetic acid (70g) at the reaction temperature of 8℃, adjust the r...

Synthetic example 3

[0045] Synthesis Example 3: Synthesis of bis-(2,3-epithiopropyl) sulfide (pH 3.5)

[0046] Add bis(3-chloro-2-hydroxypropyl) sulfide (1072.48 g, 4.89 mol), toluene (toluene) 1300 g, and methanol 800 g to a 10 liter reaction vessel, stir, and adjust the reaction temperature to 25°C. When reaching 25°C, NaOH (50% aq., 783.08g, 9.78mol) was added dropwise, and the reaction temperature during the dropwise addition was carried out at 35-37°C, and the temperature was maintained and the reaction proceeded. The dripping is carried out within 1 hour, and then the fermentation is kept at 37°C for about 30 minutes. After the fermentation, 2000g of toluene is added and stirred for about 10 minutes for stratification. The supernatant organic matter is washed twice with water. Limit the removal of water, add 400g of methanol to the organic solution with several layers again, stir, add thiourea (1117.65g, 14.30mol) and anhydrous acetic acid (70g) at a reaction temperature of 8°C, adjust the re...

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

PropertyMeasurementUnit
thermal resistanceaaaaaaaaaa
Abbe numberaaaaaaaaaa
Login to View More

Abstract

The invention relates to a method for producing a polymer composite for optical materials and an optical material that can avoid unhardened or uneven polymerization and obtain high-quality thioepoxy-based optical materials. The invention provides a method for manufacturing a thioepoxy-based optical material, which includes a stage of manufacturing a polymeric composition containing a thioepoxy compound with a pH of 4-8, and a stage of injection molding the polymeric composition. The thioepoxy-based optical material produced by the invention can replace existing optical materials and is widely used in various fields.

Description

Technical field [0001] The present invention relates to a method for manufacturing optical materials of polymerized thioepoxy compounds, in particular to a polymer composite and optical materials for optical materials that can avoid uncuring or uneven polymerization and obtain high-quality thioepoxy based optical materials. Material manufacturing method. Background technique [0002] Korean Registered Patent No. 10-0681218 discloses a thioepoxy based plastic lens. The thioepoxy-based lens has high refractive index, high Abbe number and excellent performance, but the problem is that the lens is easy to break and not easy to stain. In order to solve this problem, Korean Registered Patent No. 10-0417985, Japanese Patent Publication Hei 11-352302, etc. disclose methods for polymerizing two resins with different properties, namely, polymerizing thioepoxy compounds, polythiol compounds, and polyisocyanates. Compound method. [0003] Thio-epoxy-based lenses or thio-epoxy-based lenses d...

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 Patents(China)
IPC IPC(8): C08G18/38C08L75/04G02B1/04G02B3/00
Inventor 张东奎卢守均金钟孝
Owner KOC SOLUTION
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