Solid Surface Scratch Resistance via Filler Size Control
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Solution Overview
Problem
Existing solid surface materials lack enhanced durability and scratch resistance while maintaining woodwork-ability, with existing technologies focusing on surface coatings or fillers that do not consistently improve performance throughout the material's bulk.
Innovation Solution
A solid surface composed of a crosslinked acrylic or unsaturated polyester resin with inorganic filler particles, where 95-99% of filler particles have a major dimension between 0.5 to 10 microns, and are modified with discrete functional particles, ensuring even distribution and binding, which enhances durability and scratch resistance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If hard fillers or hard coatings are used to impart durability, then scratch resistance is improved, but the material loses woodwork-ability
Solution Approach 1:
The patent applies parameter changes by precisely controlling filler particle size (0.5 to 10 microns) and resin composition ratios to achieve a balance between durability and workability. This parameter optimization allows the material to resist scratching while remaining suitable for woodwork operations.
Solution Approach 2:
The invention uses composite materials by combining crosslinked acrylic or unsaturated polyester resin with specifically sized inorganic filler particles. This composite structure provides both the durability needed for scratch resistance and the properties required for woodwork-ability.
2Strength
If surface coatings are applied to enhance durability, then scratch resistance is improved, but the improvement does not persist throughout the bulk of the material
Solution Approach 1:
The patent applies local quality by ensuring that the durable filler-resin composite structure is distributed evenly throughout the entire bulk of the material, not just on the surface. This uniform distribution ensures consistent performance from surface to interior.
Solution Approach 2:
The invention uses preliminary action by incorporating the durable filler particles and resin matrix into the bulk material during the manufacturing process itself, rather than applying durability enhancements as post-processing surface coatings. This ensures the durable structure is built-in from the start.
3Strength
If larger filler particles are used to improve durability, then scratch resistance is improved, but the material becomes more difficult to work with
Solution Approach 1:
The patent applies parameter changes by optimizing filler particle size to a specific range (0.5 to 10 microns) that balances durability enhancement with workability. This precise parameter control ensures the material remains easy to work with while achieving improved scratch resistance.
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 solution provides a highly durable and scratch-resistant solid surface that is easy to repair and maintains performance throughout, with improved mechanical properties and reduced scratch visibility compared to traditional materials.
Implementation Method 1
a crosslinked acrylic or unsaturated polyester resin
Implementation Method 2
inorganic filler particles distributed evenly throughout the solid surface
Implementation Method 3
filler particles modified with discrete functional particles that are bound, or adhered to the filler particles
Data Source
AI summary
A solid surface comprises (i) a crosslinked acrylic or unsaturated polyester resin present in an amount no greater than 51 or 52 volume fraction percent, and (ii) no greater than 48 or 49 volume fraction percent of inorganic filler particles that are modifed with discrete functional particles that are bound, or adhered to the filler particles, the filler particles being distributed evenly throughout the solid surface wherein (a) 95 - 99 volume fraction percent of the filler particles has a major dimension in the range of from 0.5 to no greater than 10 microns, (b) the D50 of the filler particles is from 0.5-2.5 microns, (c) the D90 of the filler particles is equal to or less than 10 microns and (d) the filler particles are modified with discrete functional particles that are bound, or adhered to the filler particles.