28825-96-9Relevant articles and documents
Synthesis method of high-purity tris (glycidyl) isocyanurate
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Paragraph 0027-0059, (2021/07/14)
The invention discloses a synthesis method of high-purity tris (glycidyl) isocyanurate. The method comprises the following steps: (1) adding cyanuric acid, a catalyst and a polar solvent into a reactor, and uniformly mixing; (2) dropwise adding epoxy chloropropane to react with cyanuric acid, and separating to obtain an intermediate; (3) reacting the intermediate and calcium oxide in an organic medium; and (4) separating while the product is hot, removing solids, cooling and crystallizing the liquid, and separating to obtain the product TGIC. According to the method, the hydrolysis side reaction of the product and an intermediate product is effectively controlled, so that the product yield reaches 96% or above, and the purity reaches 99%.
Preparation method of triglycidyl isocyanurate
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Paragraph 0038-0051, (2021/02/06)
The invention relates to a preparation method of triglycidyl isocyanurate. The preparation method comprises the steps that cyanuric acid and dichloropropanol are subjected to a heating reaction in thepresence of alkali and a solvent, the molar ratio of cyanuric acid to dichloropropanol is 1: 2 to 8, and the molar ratio of the addition amount of alkali to the addition amount of dichloropropanol is2: 1. The raw material conversion rate of the triglycidyl isocyanurate prepared by the method is high and reaches 95% or above, the product selectivity is good and reaches 95% or above, and the product yield is high and reaches 90% or above and is far higher than the yield of about 80% in the prior art.
Method for preparing triglycidyl isocyanurate (TGIC)
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Paragraph 0012, (2017/08/28)
The invention relates to a method for preparing triglycidyl isocyanurate (TGIC). The method is characterized in that the TGIC is prepared from sodium cyanate, which serves as a raw material, through substitution and condensation reactions. The method specifically comprises the following steps of proportionally mixing sodium cyanate, epichlorohydrin, a benzyl bromide organic catalyst, 30% hydrogen peroxide and a polar solvent in a reactor in one time, carrying out stirring for 10 minutes at room temperature, then, carrying out heating, controlling the temperature to 70 DEG C to 90 DEG C, carrying out a reflux reaction for 3 to 5 hours, and then, carrying out aftertreatment, thereby obtaining the TGIC. According to the method, a one-pot method preparation process is adopted, so that process flows are simple and quick; the raw materials are readily available and easily stored, and the reactions are carried out at normal pressure, so that when industrialization is achieved, the equipment investment and labor can be reduced, and the production cost is reduced; and the TGIC prepared by the method is high in yield and high in purity.