Wood Coating Wax Composition for Stable Thin-Layer Application
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Solution Overview
Problem
There is a need for improved wood coating compositions that provide high stability against phase separation, excellent spreadability, and maintain good hardness, abrasion resistance, scratch resistance, matting, antiblocking, water repellency, and slip resistance properties, while allowing for thin coating layers and reducing the use of organic solvents.
Innovation Solution
A wood coating composition comprising 58.00 to 95.00 wt.% of alkyd resin or drying oil, 0.10 to 8.00 wt.% of microcrystalline wax with a congealing point from 60° C. to 100° C., and 5.00 to 34.00 wt.% of micronized wax with specific particle sizes, which ensures stability and excellent spreadability without the need for organic solvents.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If conventional wood coating compositions are used, then they can provide basic protection and coating properties, but they suffer from phase separation instability and poor spreadability
Solution Approach 1:
The patent uses a composite wax system combining microcrystalline wax (0.1-8.0 wt%) with specific melting point (60-100°C) and synthetic micronized wax (5-34 wt%) with particle size D90≤36μm and D50≤20μm. This composite approach creates synergistic effects where the microcrystalline wax provides structural stability and the synthetic micronized wax enhances spreadability, resolving the contradiction between composition stability and ease of operation.
Solution Approach 2:
The patent optimizes specific parameters including the congealing point of microcrystalline wax (60-100°C) and particle size distribution of synthetic micronized wax (D90≤36μm, D50≤20μm). These parameter changes ensure the coating maintains stability at storage temperatures while achieving excellent spreadability during application, directly addressing the phase separation and spreadability contradiction.
2Quantity of substance
If low amounts of coating composition are used to form thin coating layers, then material efficiency improves, but maintaining all required properties becomes difficult
Solution Approach 1:
The patent employs a composite formulation with alkyd resin or drying oil (58-95 wt%), microcrystalline wax (0.1-8.0 wt%), and synthetic micronized wax (5-34 wt%). This composite structure allows thin coating layers to achieve reliable properties because each component contributes specific functions: the resin provides base protection, while the optimized wax combination enhances hardness, abrasion resistance, and other properties even at low application amounts.
Solution Approach 2:
The synthetic micronized wax with specific particle size distribution (D90≤36μm, D50≤20μm) provides localized enhancement of coating properties. The fine particle distribution ensures uniform dispersion and effective performance in thin layers, allowing the coating to maintain reliability with reduced material quantity.
3Reliability
If multiple wax types are combined to achieve multiple properties, then coating performance improves, but composition complexity increases
Solution Approach 1:
The patent combines three main components in specific proportions: alkyd resin or drying oil (58-95 wt%), microcrystalline wax (0.1-8.0 wt%), and synthetic micronized wax (5-34 wt%). This structured composite approach achieves multiple properties (water repellency, slip resistance, hardness, etc.) while maintaining manageable composition complexity through defined ratios and specifications for each component.
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 composition achieves high stability against phase separation, excellent spreadability, and maintains good hardness, abrasion resistance, scratch resistance, matting, antiblocking, and slip resistance, while allowing for thin coating layers and reducing solvent use.
Implementation Method 1
wax is widely used to provide water repellency and dimensional stability to wood and wood products
Implementation Method 2
maintaining good hardness, abrasion resistance, scratch resistance
Implementation Method 3
maintaining good hardness, abrasion resistance, scratch resistance, matting, antiblocking, water repellency, and slip resistance properties
Data Source
AI summary
The present invention relates to an improved wood coating composition wherein said composition (C) comprises, relative to the total weight of composition (C), from 58.00 to 95.00 weight percentage of at least one alkyd resin or at least one drying oil, from 0.10 to 8.00 wt. % of at least one microcrystalline wax having a congealing point from 60° C. to 100° C., and from 5.00 to 34.00 wt. % of at least one synthetic micronized wax, said at least one synthetic micronized wax having a particle size D90 equal to or less than 36.0 μm and a particle size D50 equal to or less than 20.0 μm, wherein the congealing point of the microcrystalline wax (Wc) is measured according to the standard ASTM D938, and wherein the particle size of the at least one micronized wax (Mp) is measured according to the standard DIN ISO 13320.