Low Melting Point Ether Alcohol for Hydrophobic Coatings

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Solution Overview

Problem

Ether alcohols with high melting points are difficult to handle and form coatings with low hydrophobicity, limiting their practical applications as emulsifiers and surfactants.

Innovation Solution

A compound with a specific structure, represented by Chemical Formula (1), featuring a glyceryl ether group and a hydroxyl group within the carbon chain, which has a low melting point and enhances hydrophobic coating formation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If ether alcohols are obtained by reaction of epoxy alkane with polyhydric alcohol as in Patent Document 1, then they are useful as raw materials for emulsifiers and surfactants, but they have high melting point making them poor in handleability

Engineering Contradiction:
Improveusefulness as raw materialVSAvoidhandleability
Core Design Contradiction:
Ease of manufactureVSEase of operation

Solution Approach 1:

The patent changes the chemical structure parameters of the ether alcohol by specifying that R1 and R2 are linear alkyl groups (not branched), and by defining specific carbon atom number ranges (R1: 1-33, R2: 1-33, total: 14-34). These parameter changes result in lower melting points and improved handleability while maintaining the compound's utility as an emulsifier and surfactant raw material.

Inventive Principle:
Principle #35Parameter changes

2Stability of the object's composition

If ether alcohols have high melting point, then they may have stable structure, but the coating formed has low hydrophobicity

Engineering Contradiction:
Improvestructural stabilityVSAvoidhydrophobicity of coating
Core Design Contradiction:
Stability of the object's compositionVSObject-affected harmful factors

Solution Approach 1:

The patent changes the structural parameters by specifying linear alkyl groups and specific carbon atom distributions, which creates a balance between structural stability and hydrophobicity. The linear structure with specific chain lengths provides both stability and sufficient hydrophobicity for effective coating formation.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentUS12030844B2Compound and composition
Publication Date: 2024.07.09 KAO CORP
  • US12030844B2 patent drawing
  • US12030844B2 patent drawing
  • US12030844B2 patent drawing

AI summary

The present invention provides: a compound that has a low melting point and is capable of forming a film of high hydrophobicity, and a composition containing this compound. The compound of the present invention is represented by chemical formula (1).(In the formula, R1 and R2 are each a C1-C33 aliphatic hydrocarbon group, the total number of carbons of in R1 and R2 is 14-34, X is a single bond or a C1-C5 aliphatic hydrocarbon group, and A is —O—CH2—CH(OH)—CH2OH or —O—CH(—CH2—OH)2).