Polyether Curing Agent for Epoxy Resins
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Solution Overview
Problem
There is a need for new curing agents with novel compounds that can enhance the polymerizing and curing abilities of polymerizable compounds used in various industrial applications, such as coatings, adhesives, and semiconductor sealing, as existing agents like aliphatic polyamines, while effective, may require additional components and have limitations in specific uses.
Innovation Solution
A novel polyether compound represented by specific general formulas, which includes a polyamine compound with a specific molecular structure that can undergo polyaddition-type reactions with epoxy compounds, offering excellent curing properties and the ability to be used alone or in combination with other curing agents, and a method of producing this compound through reactions involving tris(hydroxymethyl)aminomethane and acrylonitrile or methacrylonitrile.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If aliphatic polyamines are used as curing agents, then excellent mechanical properties and adhesive properties are achieved, but additional components are required and limitations in specific uses occur
Solution Approach 1:
The invention extracts and combines the essential functional groups (amino groups and hydroxyl groups) from traditional polyamine curing agents into a single simplified molecular structure. The polyether compound contains both nucleophilic amino groups for epoxy ring-opening and hydroxyl groups for further crosslinking, eliminating the need for additional curing agents or components while maintaining excellent mechanical properties and adhesive performance.
2Reliability
If traditional curing agents are used, then curing properties are achieved, but polymerizing and curing abilities are limited
Solution Approach 1:
The polyether compound serves multiple functions simultaneously: it acts as a curing agent through its amino groups, provides additional crosslinking through its hydroxyl groups, and enhances the overall polymerizing ability of the epoxy resin system. This multi-functionality allows the single compound to improve both curing properties and polymerizing abilities without requiring multiple specialized additives.
3Reliability
If existing curing agents are used, then epoxy compounds can be cured, but novel compounds with enhanced abilities are needed
Solution Approach 1:
The invention creates a composite molecular structure within the polyether compound that integrates multiple functional groups (amino groups from polyamine and hydroxyl groups from ether linkages) into a single synergistic molecule. This composite structure provides both the curing ability of traditional polyamines and the enhanced polymerizing properties of compounds with multiple reactive groups, satisfying the need for novel compounds with superior performance.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The polyether compound demonstrates superior polymerizing and curing abilities, enabling the formation of high-quality epoxy resins with improved mechanical, adhesive, and chemical resistance properties, suitable for diverse industrial applications with reduced reliance on other curing agents.
Implementation Method 1
The polyether compound of formula (1) has four amino groups and one hydroxyl group in the molecule, and the compound may be used as a curing agent for an epoxy compound or the like
Implementation Method 2
a producing method of a polyether compound represented by the following general formula (3) including a step of obtaining a compound represented by the following general formula (2) by reacting tris(hydroxymethyl)aminomethane with acrylonitril and/or methacrylonitril and a step of reducing the compound represented by the general formula (2)
Data Source
Figure 1
Figure 2
Figure 3
AI summary
Disclosed is a polyether compound which is useful as a curing agent or the like, a curing agent using the compound and a producing method of the compound. The polyether compound of the present invention is represented by the following general formula (1). (In the formula, R1 represents a hydrogen atom or a methyl group and R2 represents a hydrogen atom or -C(=O)-C(R3)=CH2. R3 represents a hydrogen atom or a methyl group. R1, R2 and R3 may be the same as or different from each other.)