Phenylene Ether Resin Composition for Laminated Plates

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Solution Overview

Problem

Phenylene ether resin exhibits high melt viscosity, weak adhesiveness to copper and glass cloth, and low peel strength, limiting its moldability and performance in laminated plates.

Innovation Solution

A resin composition comprising a phenylene ether resin and a petroleum resin, with optional addition of a thermoplastic elastomer, to achieve reduced melt viscosity, improved dielectric properties, and increased peel strength.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If phenylene ether resin is used, then dielectric properties are maintained, but melt viscosity becomes high

Engineering Contradiction:
Improvedielectric propertiesVSAvoidmoldability
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The patent combines phenylene ether resin with petroleum resin to create a composite material system. The petroleum resin acts as a viscosity reducer that does not compromise the dielectric properties of the phenylene ether resin, thereby resolving the contradiction between maintaining dielectric performance and achieving acceptable moldability.

Inventive Principle:
Principle #40Composite materials

2Reliability

If phenylene ether resin is used, then dielectric dissipation factor is low, but adhesiveness to copper and glass cloth becomes weak

Engineering Contradiction:
Improvedielectric dissipation factorVSAvoidadhesiveness
Core Design Contradiction:
ReliabilityVSStrength

Solution Approach 1:

The patent creates a composite resin system where petroleum resin is combined with phenylene ether resin. The petroleum resin component provides improved adhesion to copper and glass cloth while the phenylene ether resin maintains the low dielectric dissipation factor, thus resolving the contradiction between dielectric performance and adhesiveness.

Inventive Principle:
Principle #40Composite materials

3Reliability

If phenylene ether resin is used, then dielectric constant is low, but peel strength becomes low

Engineering Contradiction:
Improvedielectric constantVSAvoidpeel strength
Core Design Contradiction:
ReliabilityVSStrength

Solution Approach 1:

The patent formulates a composite material combining phenylene ether resin with petroleum resin. The petroleum resin phase provides enhanced peel strength through its adhesive properties, while the phenylene ether resin phase maintains the low dielectric constant required for electronic applications.

Inventive Principle:
Principle #40Composite materials

Data Source

PatentUS20250129243A1Resin composition, and curable film and laminated plate containing same
Publication Date: 2025.04.24 MITSUBISHI GAS CHEM CO INC
  • US20250129243A1 patent drawing
  • US20250129243A1 patent drawing
  • US20250129243A1 patent drawing

AI summary

According to the present invention, there can be provided a resin composition comprising a phenylene ether resin and a petroleum resin, wherein the phenylene ether resin is represented by the following general formula (1):wherein X represents a unit comprising an aromatic ring; Y1 and Y2, which may be the same or different, each represent a phenylene group; Z1 and Z2, which may be the same or different, each represent a hydrogen atom or a unit comprising a polymerizable double bonding group; and at least any one of m and n is not 0, and m and n represent an integer of 0 to 300, whereinin the general formula (1), with regard to the percentage (%) of the number of the polymerizable double bonding groups (A) [eq./g] and the number of hydroxyl groups (B) [eq./g], (A)/(B)=95.0 to 99.5/0.5 to 5.0.