Unlock instant, AI-driven research and patent intelligence for your innovation.

Preparation method of triallyl isocyanurate

A technology of triallyl isocyanurate and sodium isocyanurate, applied in the direction of organic chemistry and the like, can solve problems such as being unsuitable for industrial production, and achieve the effects of high product yield, low price and good product quality

Active Publication Date: 2014-12-31
江苏科利新材料有限公司
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The product quality in this method is good, and its raw material TAC comes from the reaction of cyanuric chloride and allyl alcohol, but the preparation cost of only TAC has surpassed above-mentioned two methods in China, is not suitable for industrialized production

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
  • Preparation method of triallyl isocyanurate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Add 195g of sodium isocyanurate and 600g of acetonitrile into a four-necked flask with a condenser, add 2g of cuprous chloride and 8g of triethylamine at the same time, raise the temperature to 70-75°C, and slowly add 345g of allyl chloride dropwise, dropwise The time is 3.5-4 hours, after the dropwise addition of allyl chloride, keep the temperature at 80-85° C. for 4 hours. After the reaction was finished, the solid phase was suction filtered out, and all the solvent was recovered from the liquid phase. After distilling at 113-115°C / 133.3Pa, 205g of a colorless and transparent liquid triallyl isocyanurate product was distilled, with a yield of 82.16% (based on isocyanate Sodium urate), content 98.12% (HPLC).

Embodiment 2

[0024] Add 195g of sodium isocyanurate and 500g of N,N-dimethylformamide into a four-necked flask with a condenser, add 2g of cuprous chloride and 8g of tributylamine at the same time, raise the temperature to 80-85°C, and start slowly dripping Add 345 g of allyl chloride, dropwise for 3-3.5 hours, keep the temperature at 90-95°C for 3 hours after the addition of allyl chloride is completed. After the reaction was finished, the solid phase was suction filtered out, and the liquid phase was decompressed to recover all the solvents. After distilling 215g of a colorless and transparent liquid triallyl isocyanurate product at 113-115°C / 133.3Pa, the yield was 86.17% (based on Sodium isocyanurate), content 98.46% (HPLC).

Embodiment 3

[0026] Add 195g of sodium isocyanurate and 500g of dimethyl sulfoxide into a four-necked flask with a condenser, add 2g of copper powder and 8g of triethylamine at the same time, raise the temperature to 90-95°C, and slowly add 345g of allyl chloride dropwise. The adding time is 3-3.5 hours. After the addition of the chloropropene dropwise, keep the temperature at 100-105° C. for 3 hours. After the reaction was finished, the solid phase was suction filtered out, and the liquid phase was decompressed to recover all the solvents. After distilling 212g of a colorless and transparent liquid triallyl isocyanurate product at 113-115°C / 133.3Pa, the yield was 84.97% (based on Sodium isocyanurate), content 98.71% (HPLC).

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 synthesis field of triallyl isocyanurate, and specifically provides a method for preparing triallyl isocyanurate by using a catalytic system. The isocyanurate and a catalyst are added into solvent. Chloropropene is dropwise added under the temperature of 70-105 DEG C for reaction. After reacting for 4-8 hours, the reactant is cooled to room temperature and filtered to remove solid phases. The filtrate subjected to solvent recovery is distilled under 113-115 DEG C / 133.3Pa to obtain the triallyl isocyanurate product, wherein the catalyst is the catalytic system of a copper catalyst and a phase transfer catalyst. According to the invention, a solvent method is adopted, and no water is brought in the reaction solution, so that the raw material chloropropene cannot be hydrolysized, the excessive chloropropene can be recycled at the end of the reaction, and the triallyl isocyanurate product obtained by the reaction has good quality.

Description

technical field [0001] The invention relates to the field of synthesis of triallyl isocyanurate, and specifically provides a method for preparing triallyl isocyanurate by using a catalytic system. Background technique [0002] Triallyl isocyanurate (hereinafter referred to as TAIC), scientific name 1,3,5-triallyl-s-triazine-2,4,6-trione, is an aromatic-containing compound developed in the 1980s. It is a high molecular weight monomer of heterocyclic multifunctional olefin, which is a fine chemical product with a wide range of uses. It can be used in combination with organic peroxides such as DCP for polyolefin, polyvinyl chloride, polyester, polyamide, ethylene-propylene rubber, Crosslinking of thermoplastic materials such as silicone rubber; its unique triazine structure can improve the heat resistance, mechanical strength, oil resistance and air permeability of crosslinked products; it can also be polymerized with other unsaturated monomers to form transparent, hard, resist...

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): C07D251/34
Inventor 孙锦伟孔诚刘毓红周春江景伟马振伟
Owner 江苏科利新材料有限公司