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Method for synthesizing bisphenol A ethoxy compound

A technology for ethoxylates and synthesis methods, applied in chemical instruments and methods, organic compounds/hydrides/coordination complex catalysts, chemical/physical processes, etc., can solve the problem of increased production costs, recovery of solvent consumption and energy consumption Increase and other problems to achieve the effect of simple and easy steps and light color

Inactive Publication Date: 2009-12-30
YIXING ZHIBO ADVANCED MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage is that the material consumption and energy consumption caused by the recovery of the solvent increase, resulting in an increase in production costs

Method used

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  • Method for synthesizing bisphenol A ethoxy compound
  • Method for synthesizing bisphenol A ethoxy compound
  • Method for synthesizing bisphenol A ethoxy compound

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Example 1: Preparation of bisphenol A polyoxyethylene ether with a degree of polymerization of 4, BPA-4EO.

[0020] The reaction formula is as follows:

[0021]

[0022] This example is a typical bisphenol A polyoxyethylene ether, named BPA-4EO, this product is produced after acrylated bisphenol A polyoxyethylene ether diacrylate, the English abbreviation is 4EOBPDA, and the ratio of BPA-4EO is the number of moles BPA: EO = 1: 4, the hydroxyl value requirement is 280±10mgKOH / g.

[0023] First add 1000 grams of bisphenol A and 2 grams of dimethylaminoethanol into the reaction kettle, under the protection of nitrogen, then set the frequency modulation motor speed to 50 rpm, heat up with steam to 120 ° C to add EO, and then put in 190 grams After EO, ​​gradually increase the stirring speed to 180 rpm. Until the completion of adding EO to 763 grams, ensure that the temperature does not exceed 120°C; the pressure does not exceed 0.35Mpa, and react for 4.5 hours to obtai...

Embodiment 2

[0024] Example 2: Preparation of bisphenol A polyoxyethylene ether with a degree of polymerization of 6, BPA-6EO.

[0025] The reaction formula is as follows:

[0026]

[0027] This example is a typical bisphenol A polyoxyethylene ether, named BPA-6EO. This product is produced after acrylated bisphenol A polyoxyethylene ether diacrylate, the English abbreviation is 6EOBPDA, and the ratio of BPA-6EO is the number of moles BPA:EO=1:6, the hydroxyl value requirement is 230±10mgKOH / g.

[0028] First add 800 grams of bisphenol A and 2.6 grams of dimethylaminoethanol into the reaction kettle, under the protection of nitrogen, then set the frequency modulation motor speed to 50 rpm, heat the temperature with steam to 120 ° C to add EO, and then put in 154 grams After EO, ​​gradually increase the stirring speed to 180 rpm. Until the completion of adding EO to 926 grams, ensure that the temperature does not exceed 120°C; the pressure does not exceed 0.35Mpa, and react for 6 hours ...

Embodiment 3

[0029] Example 3: Preparation of bisphenol A polyoxyethylene ether with a degree of polymerization of 10, BPA-10EO.

[0030] The reaction formula is as follows:

[0031]

[0032] This example is a product of 10 moles of bisphenol A polyoxyethylene ether, named BPA-10EO. This product is acrylated to produce bisphenol A polyoxyethylene ether diacrylate, the English abbreviation is 10EOBPDA, and the proportion is the number of moles of BPA: EO=1:10, the hydroxyl value requires 170±10mgKOH / g.

[0033] First add 600 grams of bisphenol A and 5.3 grams of dimethylaminoethanol into the reaction kettle, under the protection of nitrogen, then set the frequency modulation motor speed to 50 rpm, use steam to heat up the temperature to 115°C to add EO, and then put in 110 grams After EO, ​​gradually increase the stirring speed to 180 rpm. Until the completion of adding EO to 1158 grams, ensure that the temperature does not exceed 120°C; the pressure does not exceed 0.35Mpa, and react ...

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Abstract

The invention discloses a method for synthesizing a bisphenol A ethoxy compound, which comprises the following steps: adding bisphenol A and a catalyst of dimethyl aminoethanol into a reactor, raising the temperature to a reaction temperature of between 110 and 125 DEG C by stirring and the protection of inert gas; and adding epoxyethane into the mixture to react at a pressure of between 0.1 and 0.35 MPa for 1 to 20 hours to prepare the bisphenol A ethoxy compound. The reaction equation is shown as follows, wherein n is between 1 and 5. The method achieves the solid polymerization of the bisphenol A and the epoxyethane, and selects the novel dimethyl aminoethanol as the catalyst so that the product is free from postprocessing. The product of the bisphenol A ethoxy compound has the advantages of shallow color phase which ranges from 10 to 30, no existence of metallic ions, 0.05 to 0.1 ppm of peroxide and the like.

Description

technical field [0001] The invention belongs to the field of organic chemical synthesis of new materials, in particular to a method for synthesizing bisphenol A ethoxylated derivatives. Background technique [0002] Ethoxylated bisphenols include BPA-2EO, BPA-4EO and BPA-10EO; BPA(2EO)DA, BPA(4EO)DA and BPA(10EO)DA can be prepared respectively through acrylated raw materials for UV radiation Cured reactive monomer diluent. As a fast-growing new technology, UV radiation curing technology has been widely used in many high-tech fields such as: microelectronics industry, PCB circuit board, aerospace, banknote printing, high-end civilian use, etc.; such as in high-end microelectronics In terms of components, it has unique advantages. The surface coating can be controlled at 30-300 nanometers. It has corrosion resistance, good mechanical properties of abrasion resistance, heat resistance, energy saving and environmental protection. Because the performance index of UV radiation c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C43/23C07C41/03B01J31/02
Inventor 邵国刚梁志强
Owner YIXING ZHIBO ADVANCED MATERIAL TECH
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