Surface Treatment Compound for Water Repellency and Abrasion Resistance

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Solution Overview

Problem

Existing surface treatment agents lack sufficient water repellency and abrasion resistance, necessitating the development of a compound that can enhance these properties in substrates.

Innovation Solution

A compound with at least two linear alkylene groups, a trivalent or higher valent linking group, and a reactive silyl group is used to create a surface treatment agent that imparts favorable water repellency and abrasion resistance to substrates.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional surface treatment agents are used, then surface treatment can be applied to articles, but water repellency and abrasion resistance are insufficient

Engineering Contradiction:

Improvewater repellency and abrasion resistanceVSAvoidmolecular structure complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The compound is divided into distinct functional segments: hydrophobic alkylene groups (for water repellency), reactive silyl groups (for substrate bonding), and linking groups (for structural connectivity). This segmentation allows each part to perform its specific function optimally, resolving the contradiction between achieving high reliability and maintaining structural simplicity

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent applies local quality by positioning hydrophobic alkylene groups at specific locations within the molecule to provide water repellency at the surface, while reactive silyl groups are positioned to bond with the substrate. This localized functional distribution achieves high water repellency and abrasion resistance without requiring complex overall molecular structures

Inventive Principle:

Principle #3Local quality

2Illumination intensity

If surface treatment is performed to improve appearance and visibility, then article properties are enhanced, but the surface becomes more susceptible to fingerprints and staining

Engineering Contradiction:

Improveappearance and visibilityVSAvoidfingerprint and stain susceptibility

Core Design Contradiction:

Illumination intensityVSObject-affected harmful factors

Solution Approach 1:

The patent converts the typically harmful effect of surface treatments (increased fingerprint and stain susceptibility) into a benefit by incorporating hydrophobic alkylene groups that create a water-repellent surface. This hydrophobicity causes water and oil-based substances to bead up and roll off, transforming the surface from one that attracts contaminants to one that repels them, while maintaining good appearance

Inventive Principle:

Principle #22Blessing in disguise (Convert harm into benefit)

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 compound effectively improves the water repellency and abrasion resistance of substrate surfaces, forming a surface treatment layer that enhances the durability and appearance of treated articles.

Implementation Method 1

a reactive silyl group bonded to the trivalent or higher valent linking group

Methodology Applied

Scientific EffectHydrolysis: Hydrolysis

Implementation Method 2

a reactive silyl group bonded to the trivalent or higher valent linking group

Methodology Applied

Scientific EffectCondensation: Condensation

Implementation Method 3

at least two linear alkylene groups

Methodology Applied

Scientific EffectHydrophobic effect: Hydrophobe

Data Source

PatentUS20250026958A1Compound, composition, surface treatment agent, method of producing article, and article

Publication Date: 2025.01.23 AGC INC

AI summary

A compound that contains at least two linear alkylene groups, a trivalent or higher valent linking group to which the at least two linear alkylene groups are bonded, and a reactive silyl group that is bonded to the trivalent or higher valent linking group; a composition and a surface treatment agent that contain the compound; and an article and a method of producing an article that use the surface treatment agent.