Multilayer Panel with Polymeric Reinforcement for Thermal Insulation

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Solution Overview

Problem

Existing multilayer building panels with thermal insulation properties face challenges in balancing cost-effectiveness, durability, and resistance to environmental factors such as micro-organisms, bacteria, vapour, and condensation, particularly in agricultural applications, where fibreglass or metal-backed panels are either expensive or require additional protective coatings.

Innovation Solution

A multilayer panel construction featuring a main insulation layer sandwiched between reinforcement layers, where one reinforcement layer is made of polymeric materials like HDPE or LDPE, which are flexible, resistant to environmental attacks, and can be combined with fibreglass or metal backing for enhanced durability, and treated for improved adhesion and sealing properties.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If fibreglass or metal backing layers are used in sandwich panels, then resistance to micro-organisms, bacteria, vapour and condensation is improved, but production cost increases

Engineering Contradiction:
Improveresistance to micro-organisms, bacteria, vapour and condensationVSAvoidproduction cost
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The patent uses a composite structure combining bituminous felt paper (flexible, economical layer) with a protective coating layer containing biocides and corrosion inhibitors. This composite approach provides the resistance properties of expensive materials like fibreglass or metal while maintaining the cost-effectiveness and flexibility of bituminous felt paper.

Inventive Principle:
Principle #40Composite materials

2Ease of manufacture

If bituminous felt paper is used as backing layer, then production cost is reduced and flexibility is improved, but resistance to micro-organisms, bacteria, vapour and condensation deteriorates

Engineering Contradiction:
Improveproduction costVSAvoidresistance to micro-organisms, bacteria, vapour and condensation
Core Design Contradiction:
Ease of manufactureVSReliability

Solution Approach 1:

The protective coating layer acts as an intermediary between the bituminous felt paper and the aggressive environment (micro-organisms, bacteria, vapour, condensation). This coating layer contains biocides and corrosion inhibitors that provide the necessary protection, allowing the bituminous felt paper to maintain its cost-effectiveness and flexibility while achieving the required resistance properties.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Duration of action of stationary object

If fibreglass or metal backing layers are used, then durability and washability are improved, but the panel becomes less flexible and more expensive

Engineering Contradiction:
Improvedurability and washabilityVSAvoidflexibility
Core Design Contradiction:
Duration of action of stationary objectVSDevice complexity

Solution Approach 1:

The patent creates a composite structure where the bituminous felt paper provides flexibility and the protective coating layer provides durability and washability. This composite approach allows the panel to maintain the flexibility needed for building applications while achieving the durability and washability typically associated with rigid materials like fibreglass or metal.

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 solution provides a cost-effective, long-lasting, and washable panel that maintains thermal insulation while resisting micro-organisms, vapour, and condensation, offering improved dimensional stability and aesthetic appeal, without the drawbacks of fibreglass or metal-backed panels, such as cracking or high production costs.

Implementation Method 1

The layer in polymeric material has proven to be resistant to penetration by micro-organisms, bacteria, vapour and condensation

Methodology Applied
Scientific EffectPermeation resistance: Permeation

Implementation Method 2

a multilayer building panel having thermal insulation properties

Methodology Applied
Scientific EffectThermal insulation: Thermal Insulation

Data Source

PatentEP2776643B1Multilayer panel having thermal insulation properties
Publication Date: 2018.02.14 SILCART SPA
  • EP2776643B1 patent drawingFigure 1~2

AI summary

The invention relates to a multilayer building panel (100) having thermal insulation properties. Such panel comprises: - a main layer (1) in an insulating material comprising a first surface (10) and a second surface (20); - a first reinforcement layer (2) connected to the main layer (1) along the first surface (10); - a second reinforcement layer (3) connected to the main layer (1) along the second surface (20). The panel is characterised in that one between the first (2) and second (3) reinforcement panels comprises a layer manufactured in polymeric material.