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Tris(2-dimethylchloroethoxysilyloxyethyl)isocyanurate compound and preparation method thereof

A technology of dimethylchloroethoxysilyloxyethyl and isocyanurate, which is applied in the field of flame retardant plasticizers, can solve problems such as application limitations, and achieves high molecular weight, good plasticization and compatibility good effect

Active Publication Date: 2018-07-31
HUZHOU RUIGAO NEW MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the development status of flame retardants is that with the increasingly stringent flame retardant legislation, fire safety standards, industry directives and the increasing calls for environmental protection around the world, due to the harmful gas, its applications are limited in many ways
However, halogen-based flame retardants have excellent overall cost performance, and it is still difficult to find better substitutes for halogen-free flame retardants in many aspects, so as to research and develop efficient halogen-based flame retardants to reduce the amount of flame retardants used in polymer materials And reducing its toxicity has become an important research direction of halogenated flame retardants.

Method used

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  • Tris(2-dimethylchloroethoxysilyloxyethyl)isocyanurate compound and preparation method thereof
  • Tris(2-dimethylchloroethoxysilyloxyethyl)isocyanurate compound and preparation method thereof
  • Tris(2-dimethylchloroethoxysilyloxyethyl)isocyanurate compound and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Embodiment 1 In the 250ml four-necked bottle that stirrer, thermometer and condensation tube are equipped with, and drying tube and hydrogen chloride absorption device are equipped with at the top of condensation tube, replace the air in the bottle with nitrogen, add 8.74g (0.0333mol ) Tris(2-hydroxyethyl)isocyanurate and 80ml dioxane, add 12.91g (0.1mol) dimethyldichlorosilane below 30°C, heat up to 60°C, keep warm for 8h; After completion, lower the temperature to below 5°C, replace the drying tube with a highly expandable sealing sleeve, and pass 4.41g (0.1mol) of ethylene oxide under the liquid surface, and control the reaction temperature not higher than 20°C at the rate of introduction. 2 hours after the completion of the passage, the temperature was raised to 60°C, and the reaction was kept for 4 hours; the solvent and a small amount of low boiling point were removed by distillation under reduced pressure to obtain tris(2-dimethylchloroethoxysilyloxyethyl)isocyanu...

Embodiment 2

[0028] Embodiment 2 In the 250ml four-necked bottle that stirrer, thermometer and condensation tube are equipped with, and drying tube and hydrogen chloride absorption device are equipped with on the top of condensation tube, replace the air in the bottle with nitrogen, add 8.74g (0.0333mol ) tris(2-hydroxyethyl)isocyanurate and 100ml tetrahydrofuran, add 12.91g (0.1mol) dimethyldichlorosilane below 30°C, heat up to 50°C, and keep warm for 9h; after the HCl is released, Lower the temperature to below 5°C, replace the drying tube with a highly expandable sealing sleeve, and inject 4.70g (0.1067mol) of ethylene oxide under the liquid surface, and control the reaction temperature at a rate not higher than 20°C. After 1h, the temperature was raised to 40°C, and the reaction was kept for 8h; the excess ethylene oxide was removed by distillation under normal pressure, and the solvent and a small amount of low boiling point were removed by distillation under reduced pressure to obtain...

Embodiment 3

[0029] Embodiment 3 In the 250ml four-necked bottle that stirrer, thermometer and condensation tube are housed, and drying tube and hydrogen chloride absorption device are equipped with at the top of condensation tube, replace the air in the bottle with nitrogen, add 8.74g (0.0333mol ) Tris(2-hydroxyethyl)isocyanurate and 120ml acetonitrile, add 12.91g (0.1mol) dimethyldichlorosilane below 30°C, raise the temperature to 65°C, and keep it warm for 7h; after the HCl is released, Lower the temperature to below 5°C, replace the drying tube with a highly expandable sealing sleeve, and inject 5.14g (0.1167mol) of ethylene oxide under the liquid surface, and control the reaction temperature at a rate not higher than 20°C. After 2 hours, the temperature was raised to 55°C, and the temperature was kept for 6 hours; the excess ethylene oxide was removed by distillation under normal pressure, and the solvent and a small amount of low boiling point were removed by distillation under reduce...

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Abstract

The invention relates to a tris(2-dimethylchloroethoxysilyloxyethyl)isocyanurate compound and a preparation method thereof. The structure of the compound is shown in the following formula: the preparation method is as follows: three ( 2-Hydroxyethyl) isocyanurate is dissolved in an organic solvent, and dimethyldichlorosilane, which is 3 times molar to tris (2-hydroxyethyl) isocyanurate, is added at 50°C to 70°C React for 5 to 9 hours; after the HCl is released, a certain mole of ethylene oxide is passed under the liquid surface, and the temperature is raised to 40°C to 60°C after 1 to 2 hours, and the reaction is kept for 4 to 8 hours; after purification, three ( 2‑Dimethylchloroethoxysilyloxyethyl) isocyanurate. The flame retardant of the invention has high flame retardant efficiency and good compatibility with polymer materials, is suitable for use as a flame retardant plasticizer for polyvinyl chloride, polyurethane, epoxy resin, unsaturated resin, etc., and has simple production process and low cost , easy to realize industrial production.

Description

technical field [0001] The invention relates to a synergistic flame retardant tris(2-dimethylchloroethoxysilyloxyethyl)isocyanurate compound of silicon, nitrogen and chlorine and a preparation method thereof. The compound is suitable for use as Flame retardant plasticizer for polyvinyl chloride, polyester, epoxy resin, unsaturated resin, etc. Background technique [0002] In recent years, the global market demand for flame retardants has been showing a rapid growth trend, especially the demand for new, efficient and environmentally friendly flame retardants is more urgent. At present, the development status of flame retardants is that with the increasingly stringent flame retardant legislation, fire safety standards, industry directives and the increasing calls for environmental protection around the world, due to the harmful Gases are limited in application in many ways. However, halogen-based flame retardants have excellent overall cost performance, and it is still diffi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07F7/18C08K5/544C08L27/06
Inventor 王彦林杨海军
Owner HUZHOU RUIGAO NEW MATERIALS CO LTD
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