Hydrophobin Coating for Mineral Surface Protection

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Solution Overview

Problem

Existing methods lack effective solutions for treating the surfaces of hardened mineral building materials, natural stone, and ceramics to achieve dirt-repellent, hydrophobic, and preserving effects.

Innovation Solution

The use of hydrophobins, either isolated from natural sources or synthesized, is applied to these surfaces, often in combination with solvents, to create a coating that enhances their hydrophobicity and dirt-repellency, even with small amounts of hydrophobins.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional coatings are applied to achieve dirt-repellent and hydrophobic effects, then surface protection is improved, but the complexity of the coating process and material usage increases

Engineering Contradiction:
Improvesurface protectionVSAvoidcoating process complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The invention extracts and utilizes only the essential hydrophobin protein component from complex coating formulations. By applying pure hydrophobin proteins directly to the surface, the patent achieves effective dirt-repellent and hydrophobic properties without requiring additional solvents, resins, or complex coating additives, thereby simplifying the overall coating process while maintaining reliable surface protection

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The invention changes the fundamental parameter of coating composition by using protein-based hydrophobins instead of traditional polymer-based coatings. This parameter change enables the coating to be applied in simpler forms with fewer components, reducing process complexity while achieving the desired surface protection effects through the inherent properties of hydrophobin proteins

Inventive Principle:
Principle #35Parameter changes

2Duration of action of stationary object

If permanent coatings are applied to achieve preserving effects, then surface durability is improved, but the ease of application and simplicity of the treatment process deteriorates

Engineering Contradiction:
Improvesurface durabilityVSAvoidease of application
Core Design Contradiction:
Duration of action of stationary objectVSEase of operation

Solution Approach 1:

The hydrophobin proteins exhibit self-assembling properties that enable them to automatically organize into functional coatings on mineral surfaces. This self-service capability eliminates the need for complex application procedures, specialized equipment, or multiple processing steps, allowing the coating to form effectively through simple application methods while still achieving durable, long-lasting surface protection

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The hydrophobin proteins act as intermediary substances that bridge the mineral surface and the desired hydrophobic function. These proteins can be applied in simple aqueous solutions and spontaneously form the protective layer, serving as a mediator that simplifies the application process while ensuring durable attachment and long-term surface protection

Inventive Principle:
Principle #24Intermediary (Mediator)

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 hydrophobin treatment effectively increases the contact angle of water on these surfaces, providing a significant dirt-repellent and hydrophobic effect, making the surfaces easier to clean and maintain, especially in applications like bathrooms.

Implementation Method 1

the hydrophobin treatment effectively increases the contact angle of water on these surfaces, providing a significant dirt-repellent and hydrophobic effect

Methodology Applied
Scientific EffectHydrophobic effect: Hydrophobe

Implementation Method 2

Hydrophobins have a pronounced affinity for interfaces and are therefore suitable for coating surfaces

Methodology Applied
Scientific EffectAdsorption: Adsorption

Data Source

PatentEP1866106B1Use of hydrophobins for the surface treatment of hardened mineral building materials, natural stone, artificial stone and ceramics
Publication Date: 2010.05.26 BASF SE
  • EP1866106B1 patent drawingFigure 1
  • EP1866106B1 patent drawing
  • EP1866106B1 patent drawing

AI summary

The invention relates to the use of hydrophobins for treating the surfaces of hardened mineral building materials, natural stone, artificial stone or ceramic. The invention also relates to a method for treating such surfaces, and to surfaces of hardened mineral building materials, natural stone, artificial stone or ceramic provided with a coating containing hydrophobins.