Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

An epoxy resin composition and prepregs and laminates using the same

A technology of epoxy resin and composition, applied in the field of epoxy resin composition, prepreg, laminate and printed circuit board, which can solve the problem of low water absorption, moisture and heat resistance and dielectric properties, glass transition temperature problems such as low and low dielectric constant, to achieve the effect of good processability, good solubility, and improved heat resistance

Active Publication Date: 2018-10-09
GUANGDONG SHENGYI SCI TECH
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] During the reaction process of active ester as a curing agent and epoxy resin, there is no secondary hydroxyl group, which has low water absorption, heat and humidity resistance and good dielectric properties, but the current active ester curing agent used as a single curing agent will cause the system lower glass transition temperature
[0004] CN102985485A-discloses the use of active ester cured epoxy resin with low dielectric constant, low dielectric loss tangent, and heat resistance, but with the development of high-density interconnection and high frequency and high speed, active ester cured epoxy resin vitrification The problem of transition temperature has been unable to meet the needs of high multi-layer
[0005] CN101967265 and CN102504201 have introduced cyanate, yet, cyanate resin often because of the existence of moisture and a small amount of impurity in the monomer, causes moisture and heat resistance poor, when making laminated board, easy to appear between sheet material interlayer Layered bubbling, which has become a constraint for the application of cyanate resin in the field of copper clad laminates

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
  • An epoxy resin composition and prepregs and laminates using the same
  • An epoxy resin composition and prepregs and laminates using the same
  • An epoxy resin composition and prepregs and laminates using the same

Examples

Experimental program
Comparison scheme
Effect test

preparation example 1

[0052] Preparation Example 1: Synthesis of imide-modified active ester curing agent A1

[0053] P-aminophenol 55g and 150g methyl ethyl ketone are added in the round-bottomed flask that has stirrer, thermometer, nitrogen inlet pipe and reflux condenser, water-bath heating accelerates its dissolution, and concentration is 10% (percentage by weight) cyclobutane 500 g of butanone solution of tetraformic dianhydride was added dropwise to the reactor, and the rate of addition was controlled so that it was added dropwise within 1 hour. The reaction was continued for 2 hours at 40° C., butanone was distilled off, and 80 parts by weight of DMF and 20 parts by weight of toluene were added. 0.25 parts by weight of the catalyst p-toluenesulfonic acid (P-TSA) was added to the mixed solvent in parts by weight, and reacted for 8 hours at 110 ° C. After the reaction was completed, it was washed with water, filtered, recrystallized, and dried in vacuo to obtain Intermediates of hydroxyl compo...

preparation example 2

[0057] Preparation Example 2: Synthesis of imide-modified active ester curing agent A2

[0058] 8-amino-2-naphthol 80g and 250g butanone are added in the round-bottomed flask that has stirrer, thermometer, nitrogen inlet pipe and reflux condenser, and water-bath heating accelerates its dissolving, and concentration is 10% (percentage by weight) ) of cyclobutanetetracarboxylic dianhydride in butanone solution 500g was added dropwise to the reactor, and the rate of addition was controlled so that it was added dropwise within 1h, and the reaction was continued for 2h at 40°C, the butanone was distilled off, and DMF 80 was added A mixed solvent of parts by weight and 20 parts by weight of toluene was added to a catalyst of 0.25 parts by weight of p-toluenesulfonic acid (P-TSA), and reacted for 8 hours at 110°C. After the reaction was completed, it was washed with water, filtered, recrystallized, and dried in vacuo to obtain Intermediates of hydroxyl compounds with benzene ring and...

preparation example 3

[0062] Preparation Example 3: Synthesis of imide-modified active ester curing agent A3

[0063] 8-amino-2-naphthol 80g and 250g butanone are added in the round-bottomed flask that has stirrer, thermometer, nitrogen inlet pipe and reflux condenser, and water-bath heating accelerates its dissolving, and concentration is 10% (percentage by weight) ) of pyromellitic dianhydride in butanone solution 550g was added dropwise to the reactor, and the rate of addition was well controlled so that it was added dropwise within 1h. The reaction was continued for 2h at 40°C. Butanone was distilled off, and DMF 80 wt. 20 parts by weight of toluene and 0.25 parts by weight of catalyst p-toluenesulfonic acid (P-TSA), reacted at 110°C for 8 hours, after the reaction was completed, washed with water, filtered, recrystallized, and dried in vacuo to obtain benzene-containing Intermediates for hydroxyl compounds with ring and imide structures.

[0064] Add 48g of the intermediate obtained in the pr...

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

PropertyMeasurementUnit
epoxy equivalentaaaaaaaaaa
epoxy equivalentaaaaaaaaaa
Login to View More

Abstract

The present invention relates to an epoxy resin composition, and prepreg and a laminated plate using the same. The epoxy resin composition comprises: imide living modified ester and epoxy resin. A combination of the imide living modified ester and the resin has the good craft processability and solubleness, maintains an inherent good dielectric property when active ester resin curing epoxy resin is generated without secondary hydroxyl, and introduces an imide group with better heat resistance to a main chain, so as to improve the heat resistance of existing active ester. Prepreg and a laminated plate manufactured by using the composition have the advantages of a high glass-transition temperature, a low dielectric constant, a low dielectric loss value, and low water absorption.

Description

technical field [0001] The invention belongs to the technical field of copper-clad laminates, and in particular relates to an epoxy resin composition and prepregs, laminates and printed circuit boards using the same. Background technique [0002] With the development of electronic components in the direction of small, light, thin, high performance, and multifunctional, it brings high frequency and high speed signal transmission. This requires that the dielectric constant and dielectric loss of electronic materials are relatively low, which are related to the structure of the material, and low dielectric constant and low dielectric loss resins generally have in structure: large free volume, low polarizability , Low water absorption, low dielectric constant structure and so on. [0003] During the reaction process of active ester as a curing agent and epoxy resin, there is no secondary hydroxyl group, which has low water absorption, heat and humidity resistance and good diele...

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): C08L63/04C08G59/50B32B27/04B32B27/38B32B15/092H05K1/03
CPCB32B15/092B32B27/04B32B27/38C08G59/50C08L63/04H05K1/03
Inventor 何烈相曾宪平
Owner GUANGDONG SHENGYI SCI TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com