Multilayer Floor Covering With Thermoplastic Polymer Reinforcement
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Solution Overview
Problem
Conventional aeronautical floor coverings are heavy due to reinforcing fibers and require additional adhesive layers, complicating manufacturing and increasing costs, while seeking to maintain rigidity and reduce weight.
Innovation Solution
A multilayer floor covering with a reinforcing layer devoid of fibers, made of thermoplastic polymers like PETG, which also serves as a printing layer, reducing the number of adhesive layers and overall weight, comprising layers of fibrous reinforcement, adhesive, intermediate polymeric, and surface layers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If conventional reinforcing layers with fibers are used, then rigidity is improved, but weight increases
Solution Approach 1:
The patent changes the material parameters of the reinforcing layer by using thermoplastic polymers (PET, PETG, acrylic resins) instead of traditional fiber-reinforced resins. This parameter change maintains the necessary rigidity while significantly reducing the weight of the floor covering, achieving a surface mass lower than conventional coatings.
Solution Approach 2:
The patent employs composite material structure with a multilayer configuration including a fibrous reinforcement layer, adhesive layer, intermediate polymeric layer, and fiberless reinforcing layer made of thermoplastic polymer. This composite approach allows optimization of each layer's properties to achieve both rigidity and weight reduction.
2Reliability
If multiple adhesive layers are used to ensure compatibility between layers, then adhesion is improved, but manufacturing complexity increases
Solution Approach 1:
The patent introduces an intermediate polymeric layer between the fibrous reinforcement layer and the fiberless reinforcing layer. This intermediary layer ensures compatibility and adhesion between layers with different chemical natures, eliminating the need for multiple adhesive layers and simplifying the manufacturing process.
Solution Approach 2:
The intermediate polymeric layer serves multiple functions: it acts as an adhesive interface between layers, provides chemical compatibility, and contributes to the overall structural integrity. This multi-functionality reduces the number of separate components needed in the manufacturing process.
Data Source
Figure 1~2
AI summary
The present invention relates to a multilayer floor covering comprising: - a fibrous reinforcement layer A; - an adhesive layer B; - a backing layer C; - a reinforcement layer D, devoid of reinforcing fibers, and made of thermoplastic polymer selected from the group comprising polyester resins; acrylic resins; and their mixtures; - a surface layer E.