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A modified electronic grade epoxy resin has obtained an invention patent, including the manufacturing process and formula

a modified electronic grade epoxy resin has obtained an invention patent, including the manufacturing process and formula

April 2, 2021

Industrial Co., Ltd. announced on March 30 that it has recently received an invention patent certificate issued by the State Intellectual Property Office, and the name of the invention is an electronic grade epoxy resin composition. This patent acquisition will not have a significant impact on the current operation of the company, but will help further improve the company's intellectual property protection system and enhance the company's core competitiveness

epoxy resin is widely used in the field of electronic packaging materials and copper clad laminates because of its good thermal stability, insulation, adhesion, molding process performance and relatively low cost. However, the general epoxy resin based materials in the existing technology often have the defects of high internal stress after curing, insufficient toughness, high brittleness, poor impact resistance and flammability, and the service performance is not ideal. Therefore, it is necessary to develop special electronic epoxy resin with excellent toughness and flame retardancy

patent overview

invention Name: an electronic epoxy resin composition

patent number: ZL 2018 1 4

patent application date: October 19, 2018

patentee: Suzhou Industrial Materials Technology Co., Ltd.

and actively expand its field of use

authorization announcement date: March 9, 2021

patent period: 20 years (calculated from the application date)

the invention relates to an electronic epoxy resin composition, belonging to the field of epoxy resin modification. The epoxy resin composition is composed of epoxy resin, curing agent, flame retardant and modifier. The modifier has good interfacial compatibility with epoxy resin, and the hydroxyl group on its surface can further participate in the epoxy curing reaction, improve the crosslinking degree of the system, and thus play the role of both toughening and strengthening

in addition, the modifier can also play a synergistic flame retardant role with the flame retardant to improve the heat resistance of the epoxy resin system. The epoxy resin composition of the invention has good application prospects in the fields of electronic packaging materials and copper clad laminates. After modification, the tensile strength, impact strength and flame retardancy of epoxy resin have been enhanced by different extents:

preparation steps of modifier:

the three electron tensile testing machine is composed of measuring system, driving system, control system, computer and other structures (2-hydroxyethyl) isocyanurate is added to the nitrogen sealed reaction vessel containing organic solvent, and the temperature is raised to 50 ~ 70 ℃, Drop 0.95 times the mole of tris (2-hydroxyethyl) isocyanurate. If the oil is not used properly, the reaction temperature of drop process control is not higher than 70 ℃; After dripping, raise the temperature to ℃, and react. After the HCl gas is discharged, add an acid binding agent (melamine) with a theoretical mass of 2%-6% of the product, keep warm and stir, and test the pH of the solution = as the end point of the reaction; Evaporate the organic solvent and get the modifier for use

type of flame retardant:

one or more compositions selected from triphenyl phosphate, pentaerythritol phosphate, polyphosphate, melamine phosphate, 9,10-dihydro-9-oxa-10-phenanthroline-10-oxide with notch located in the opposite direction of impact phase

curing agent type:

one or more compositions selected from triethylamine, ethylenediamine, benzyldimethylamine, m-phenylenediamine, diaminodiphenylsulfone, phthalic anhydride, methylhexahydrophthalic anhydride, trimellitic anhydride, 2-methylimidazole, 2-ethyl-4-methylimidazole, dicyandiamide, N-methylpiperazine

Introduction to Industrial Co., Ltd.:

Suzhou Industrial Materials Technology Co., Ltd. was established in Suzhou in 1996 and listed in 2014. Its main business is the development and sales of new functional materials, including casting process materials, acrylic acid and other new chemical materials, special phenolic resin and metal modifier series new materials

the company's main products are divided into five series of casting process materials, mainly including casting resin and curing agent (self hardening furan resin, cold box resin, alkaline phenolic resin, etc.), coating, riser, filter and auxiliary materials; New materials of metal modifier series mainly include spheroidizing agent, inoculant and vermicularizing agent, etc; Other new chemical materials, such as acrylic acid, impregnating resin, and special phenolic resin. In 2019, the operating revenue was 1.29 billion yuan and the net profit was 130 million yuan

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