Artificial Marble Luminescent Chip Embedding

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Solution Overview

Problem

Current artificial marbles lack sufficient luminescence duration and texture variety, requiring excessive luminescent pigments that increase manufacturing costs and do not maintain brightness for extended periods, especially during power failures.

Innovation Solution

An artificial marble composition comprising unsaturated polyester resin, silica compounds, and a minimal amount of luminescent pigment, with specific weight ratios and particle sizes to achieve high brightness and prolonged luminescence while maintaining natural stone texture and surface hardness.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Duration of action of stationary object

If luminescent dyes are coated on the surface of artificial marbles, then luminescence function is provided, but the effect does not last long

Engineering Contradiction:

Improveluminescence durationVSAvoidluminescence effectiveness

Core Design Contradiction:

Duration of action of stationary objectVSReliability

Solution Approach 1:

The patent uses luminescent chips embedded within the artificial marble composite material rather than surface coating. The luminescent chips are integrated into the resin and inorganic aggregate matrix, creating a durable composite structure that maintains luminescence functionality throughout the material's lifespan without degradation from surface wear or environmental exposure.

Inventive Principle:

Principle #40Composite materials

2Illumination intensity

If luminescent light emitting chips are used, then uniform luminescence can be obtained, but the luminescent function is not sufficient for various applications

Engineering Contradiction:

Improveluminescence uniformityVSAvoidluminescence duration

Core Design Contradiction:

Illumination intensityVSDuration of action of stationary object

Solution Approach 1:

The patent employs luminescent chips with specific particle size ranges (0.1-2.0 mm) distributed throughout the artificial marble composition. This local optimization of chip size and distribution ensures uniform light emission while the embedded nature of the chips within the composite material provides sustained luminescence duration suitable for various applications including emergency lighting.

Inventive Principle:

Principle #3Local quality

3Illumination intensity

If excessive amount of luminescent pigment is used to achieve sufficient luminescence performance, then luminescence function is improved, but manufacturing cost increases

Engineering Contradiction:

Improveluminescence brightnessVSAvoidmanufacturing cost

Core Design Contradiction:

Illumination intensityVSEase of manufacture

Solution Approach 1:

The patent optimizes the luminescent pigment content to specific ranges (2-5 wt% of total composition) rather than using excessive amounts. By carefully controlling the concentration of luminescent chips and selecting appropriate particle sizes, the invention achieves sufficient luminescence brightness (initial brightness ≥110 mcd/m², sustained brightness ≥3 mcd/m² after 15 minutes) while minimizing material costs and improving manufacturing efficiency.

Inventive Principle:

Principle #35Parameter changes

4Shape

If artificial marble is made with natural stone particles and resin, then natural texture is achieved, but luminescence duration is insufficient

Engineering Contradiction:

Improvenatural stone textureVSAvoidluminescence duration

Core Design Contradiction:

ShapeVSDuration of action of stationary object

Solution Approach 1:

The patent creates a composite material system combining natural stone particles (50-80 mesh), inorganic fillers, binder resins, and luminescent chips. This multi-component composite structure maintains the natural stone texture and appearance while the embedded luminescent chips provide sustained luminescence duration. The resin matrix binds all components together, ensuring both aesthetic quality and functional performance for extended periods.

Inventive Principle:

Principle #40Composite materials

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 artificial marble achieves maximum brightness exceeding 110 mcd/m² and maintains luminescence above 7 mcd/m² for over one hour with reduced luminescent pigment content, offering a cost-effective and durable solution for various applications.

Implementation Method 1

a luminescent pigment (C)

Methodology Applied

Scientific EffectPhotoluminescence: Photoluminescence

Implementation Method 2

an unsaturated polyester resin (A) in an amount of 7 to 10 % by weight

Methodology Applied

Scientific EffectPolymerization: Photopolymerisation

Data Source

PatentEP2610227B1Artificial marble having natural textures and luminescent patterns

Publication Date: 2020.05.06 LOTTE ADVANCED MATERIALS CO LTD

Figure 1a~2b
Figure 3a~5
Figure 6a~6d

AI summary

An artificial marble includes unsaturated polyester resin (A), compound containing silica (B), and luminescent pigment (C). An artificial marble according to a second embodiment includes 70 to 95 % by weight of a non-luminescent base material (I) comprising unsaturated polyester resin (A), compound containing silica (B), and organic/inorganic pigment (C) and 5 to 30 % by weight of a luminescent amorphous pattern part (II) comprising unsaturated polyester resin (A), compound containing silica (B), and luminescent pigment (D). An artificial marble according to a third embodiment includes unsaturated polyester resin (A), compound containing silica (B), and amorphous luminescent chip (C).