Phosphorus-containing active ester compound and preparation method thereof

A technology of compound and active ester, which is applied in the field of phosphorus-containing active ester compound and its preparation, can solve the problems of difficult heat resistance and dielectric properties, high glass transition temperature, low dielectric loss value, etc., and achieve good resistance Moist heat effect, reduction of dielectric constant and dielectric loss, effect of small dielectric constant and dielectric loss

Inactive Publication Date: 2020-05-08
苏州巨峰新材料科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is difficult to achieve a satisfactory balance between the heat resistance and dielectric properties of the cured product, so as to have a high glass transition temperature and a low dielectric loss value at the same time, and make its dielectric properties vary with Frequency changes remain stable
[0004] Based on the above situation, in order to improve the performance of epoxy glass fiber cloth laminates, those skilled in the art have made various attempts, such as adding various additives, modifying the molecular structure of epoxy resin and curing agent, etc., in order to obtain Various properties of the substrate, such as heat and humidity resistance, flame retardancy, dielectric constant, dielectric loss value, mechanical properties, etc., have been improved in a balanced manner, but the effect is not satisfactory at present

Method used

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  • Phosphorus-containing active ester compound and preparation method thereof
  • Phosphorus-containing active ester compound and preparation method thereof
  • Phosphorus-containing active ester compound and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0066]

[0067] (1) Add 0.2 mol of bisphenol A and 0.4 mol of chloroform into 150 mL of 10% aqueous sodium hydroxide solution, and heat to 80° C. for 5 hours to react. Afterwards, the reaction system was neutralized with dilute hydrochloric acid until the pH was approximately equal to 7, extracted with diethyl ether (70 mL×3), and the organic phase was dried by vacuum rotation.

[0068] (2) 0.1mol of the step (1) resultant and 0.1mol of 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide were added to 50mL of 50% aqueous sulfuric acid solution , heated to reflux at 100°C for 5 hours. Afterwards, the reaction system was washed with ethanol (50 mL×3) to remove impurities and excess sulfuric acid, and the reaction solution was rotated and dried in vacuum.

[0069] (3) 0.05mol of step (2) gain and 0.1mol of methyl benzoate are dissolved in 30mL of toluene, and 0.02mol of catalyst AlCl is added 3 , heated to reflux at 110° C. for 6 hours, after which the reaction system was was...

Embodiment 2

[0071]

[0072] Instead of 9,10-dihydro-9-oxa-10- Phosphaphenanthrene-10-oxide, and except that the heating temperature in step (2) was 120° C., the phosphorous-containing active ester compound according to the present invention as shown above was prepared in the same manner as in Example 1.

Embodiment 3

[0074]

[0075] Instead of 9,10-dihydro-9-oxa-10- Phosphaphenanthrene-10-oxide, and except that the heating temperature in step (2) was 120° C., the phosphorous-containing active ester compound according to the present invention as shown above was prepared in the same manner as in Example 1.

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PUM

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Abstract

The invention relates to a phosphorus-containing active ester compound and a preparation method thereof. A circuit substrate prepared by adopting the phosphorus-containing active ester compound as a curing agent is excellent in flame retardance and relatively small in dielectric constant and dielectric loss. In addition, the preparation method of the phosphorus-containing active ester compound issimple in process, easy to implement and capable of achieving large-scale production.

Description

technical field [0001] The invention relates to the field of materials, in particular to a phosphorus-containing active ester compound and a preparation method thereof. The circuit substrate prepared by using the phosphorus-containing active ester compound as a curing agent has excellent flame retardancy, and the dielectric constant and dielectric Less loss. Background technique [0002] In the electronics industry, electronic substrates generally refer to copper-clad laminates, which are made of reinforcing materials (such as glass cloth) soaked in resin glue, dried, covered with copper foil, and made by high temperature and high pressure in a hot press. . The electronic substrate using epoxy resin as the adhesive in the glue is currently the most widely used glass fiber cloth type (FR-4, FR-5) substrate. Epoxy resin contains more than two epoxy groups in the molecule. Due to the chemical activity of the epoxy group, it can react with a variety of compounds containing act...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07F9/6574C08G59/40C08L63/00
CPCC07F9/657172C08G59/4071C08L63/00C08L2201/02C08L2201/08C08L2203/20
Inventor 朴龙星吴涛夏宇徐伟红
Owner 苏州巨峰新材料科技有限公司
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