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

Method for preparing flame retardant bis[tri(chloroethoxy)silicon-acyloxy]ethane

A technology of chloroethoxy and silyloxy, which is applied in the direction of silicon organic compounds, can solve problems such as threats to people's life and property safety, fires, etc., and achieve the effects of overcoming volatile reactions, low production costs, and high flame retardant efficiency

Active Publication Date: 2014-02-05
SHANDONG XINGQIANG CHEM IND TECH RES INST CO LTD
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The advancement of science and technology has promoted the rapid development of polymer synthetic materials. The current consumption of organic polymer synthetic materials has become one of the important indicators to measure whether a country or region is developed; however, most polymer materials are flammable and often cause Fire poses a serious threat to people's life and property safety, thus promoting the development of flame retardant materials and flame retardant technology

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
  • Method for preparing flame retardant bis[tri(chloroethoxy)silicon-acyloxy]ethane
  • Method for preparing flame retardant bis[tri(chloroethoxy)silicon-acyloxy]ethane
  • Method for preparing flame retardant bis[tri(chloroethoxy)silicon-acyloxy]ethane

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Example 1 In a 250ml four-neck flask equipped with a stirrer, a thermometer and a high-efficiency reflux condenser, and a drying tube on the condenser, replace the air in the bottle with nitrogen, add 60ml of dichloroethane and 17g (11.47ml, 0.1mol) silicon tetrachloride, under stirring, cool with a cold water bath to reduce the temperature of the reaction system to below 20°C, add 8.051g (6.71ml, 0.1mol) chloroethanol dropwise, and control the reaction during the dropwise addition The temperature is not higher than 30°C. After the drop, the temperature is raised to 35°C, and the temperature is kept for 1 hour; after the HCl gas is released, 3.1g (2.78ml, 0.05mol) of ethylene glycol is dropped into the four-necked flask, and the drop rate is Control the reaction temperature not to be higher than 45°C, raise the temperature to 50°C after dripping, and react for 8 hours; after the HCl gas is released, cool the system down to below 40°C, add 16.50g (13.74ml, 0.205mol) of ch...

Embodiment 2

[0030]Example 2 In a 250ml four-necked flask equipped with an agitator, a thermometer and a high-efficiency reflux condenser, and a drying tube on the upper mouth of the condenser, replace the air in the bottle with nitrogen, add 60ml of dioxane and 17g (11.47ml, 0.1mol) silicon tetrachloride, under stirring, cool with a cold water bath to reduce the temperature of the reaction system to below 20°C, add 8.051g (6.71ml, 0.1mol) chloroethanol dropwise, and control the reaction during the dropwise addition The temperature is not higher than 30°C. After dropping, raise the temperature to 35°C and keep it warm for 1 hour; after the HCl gas is released, drop 3.1g (2.78ml, 0.05mol) of ethylene glycol into the four-necked flask to Acceleration controls the reaction temperature not to be higher than 45°C. After the drop is completed, the temperature is raised to 65°C and reacted for 5 hours; after the HCl gas is released, the temperature of the system is lowered to below 40°C, and 16.90...

Embodiment 3

[0031] Example 3 In a 250ml four-neck flask equipped with a stirrer, a thermometer and a high-efficiency reflux condenser, and a drying tube on the upper mouth of the condenser, replace the air in the bottle with nitrogen, add 60ml of acetonitrile and 17g (11.47ml , 0.1mol) silicon tetrachloride, under stirring, cool with a cold water bath to reduce the temperature of the reaction system to below 20°C, add 8.051g (6.71ml, 0.1mol) of chloroethanol dropwise, and control the reaction temperature during the dropwise addition process. At 30°C, after dropping, raise the temperature to 35°C, and keep it warm for 1 hour; after the HCl gas is released, drop 3.1g (2.78ml, 0.05mol) of ethylene glycol into the four-necked flask, and control the reaction with the dropping rate The temperature is not higher than 45°C. After the dripping, the temperature is raised to 60°C, and the reaction is 6h; after the HCl gas is released, the temperature of the system is lowered to below 40°C, and 17.71g...

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
flash pointaaaaaaaaaa
densityaaaaaaaaaa
refractive indexaaaaaaaaaa
Login to View More

Abstract

The invention relates to a method for preparing a flame retardant bis[tri(chloroethoxy)silicon-acyloxy]ethane. The structure of the compound is represented by a formula shown in a drawing. The preparation method comprises the steps of reacting silicon tetrachloride with chloroethanol of a mole which is equal to that of silicon tetrachloride in an organic solvent at the temperature below 20 DEG C, then, dropwise adding glycol of a mole which is 0.5 times that of silicon tetrachloride, heating to the temperature of 50-70 DEG C after completing dripping, and reacting for 5-8 hours; then, dropwise adding chloroethanol of a mole which is 2-3 times that of silicon tetrachloride, and carrying out heat-preservation reaction for 6-9 hours at the temperature of 60-75 DEG C; adding an acid binding agent, and carrying out heat preservation for 1 hour while stirring; purifying, thereby obtaining the flame retardant bis[tri(chloroethoxy)silicon-acyloxy]ethane. The compound disclosed by the invention has high flame retarding efficacy due to the synergism of silicon and chlorine and is suitable for serving as a flame retardant for materials, such as polyvinyl chloride, polyurethane, epoxy resin, unsaturated resin and the like, and the preparation method is simple and is low in cost, so that the industrial production is easy to realize.

Description

technical field [0001] The invention relates to a method for preparing a flame retardant bis[tri(chloroethoxy)silyloxy]ethane. The compound can be used as a flame retardant for materials such as polyvinyl chloride, unsaturated polyester, polyurethane and epoxy resin. Fuel. Background technique [0002] The advancement of science and technology has promoted the rapid development of polymer synthetic materials. The current consumption of organic polymer synthetic materials has become one of the important indicators to measure whether a country or region is developed; however, most polymer materials are flammable and often cause Fire poses a serious threat to people's life and property safety, thus promoting the development of flame retardant materials and flame retardant technology. With the continuous enhancement of people's awareness of environmental protection, more stringent requirements have been put forward for halogenated flame retardants in recent years, that is, they...

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): C07F7/04C08K5/5415C08L27/06
Inventor 王彦林董信
Owner SHANDONG XINGQIANG CHEM IND TECH RES INST CO LTD
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