Multilayer Packaging Structure with Aluminum and Phosphorus Polymer Layers
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Solution Overview
Problem
Conventional multilayer structures with gas barrier properties deteriorate under physical stresses such as deformation and impact, leading to cracks and pinholes, which compromises their effectiveness in containers and other products like container lids and vacuum insulators.
Innovation Solution
A multilayer structure comprising a base, a layer containing aluminum atoms, and a polymer layer with a monomer unit having a phosphorus atom, where the layers are contiguously stacked, enhancing the structure's flexibility and maintaining gas barrier properties even under physical stress.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional multilayer structure with gas barrier coating is used, then initial gas barrier properties are good, but the structure deteriorates under physical stresses such as deformation and impact, leading to cracks and pinholes
Solution Approach 1:
The patent applies composite materials by combining multiple layers with different functions: a base layer, an aluminum-containing layer (Y), and a polymer layer (Z) containing phosphorus atoms. This composite structure synergistically provides both gas barrier properties and resistance to physical stress, preventing the deterioration seen in conventional single-approach structures.
Solution Approach 2:
The patent implements local quality by assigning specific functions to specific layers: the aluminum-containing layer (Y) provides gas barrier properties, while the polymer layer (Z) containing phosphorus atoms provides flexibility and stress resistance. This localized functional distribution allows each layer to optimize its performance for its specific purpose.
2Reliability
If the gas barrier coating is made rigid to maintain initial gas barrier properties, then gas barrier performance is good, but the coating becomes susceptible to cracks and pinholes under deformation and impact
Solution Approach 1:
The patent implements local quality by assigning specific functions to specific layers: the aluminum-containing layer (Y) provides gas barrier properties, while the polymer layer (Z) containing phosphorus atoms provides flexibility and stress resistance. This localized functional distribution allows each layer to optimize its performance for its specific purpose.
Solution Approach 2:
The patent applies parameter changes by modifying the chemical composition of the polymer layer (Z) to include phosphorus atoms, which fundamentally changes the material's properties to achieve both gas barrier performance and flexibility. This compositional parameter change enables the layer to maintain integrity under deformation while providing effective gas barrier properties.
Data Source
AI summary
A product provided includes a packaging material, and the packaging material includes a multilayer structure. The multilayer structure includes at least one base (X), at least one layer (Y), and at least one layer (Z). The layer (Y) contains an aluminum atom. The layer (Z) contains a polymer (E) containing a monomer unit having a phosphorus atom. The multilayer structure includes at least one pair of the layer (Y) and the layer (Z) that are contiguously stacked. This product is excellent in gas barrier properties, and adapted to maintain the gas barrier properties at a high level even when subjected to physical stresses such as deformation and impact.