Biopolymer Bottle Structural Integrity via Segmentation

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Solution Overview

Problem

Bottles made from organically-based biopolymers, such as polylactic acid, are prone to structural deformation and paneling, which reduces their shelf life and recyclability, and existing recycling systems face low success rates due to the environmental impact of petroleum-based plastics.

Innovation Solution

The design of liquid containers with enhanced structural integrity features, including multiple discrete flat sides, ribbed regions, and a flared base, formed from organically-based biopolymers like polylactic acid, to reduce contiguous surface area and enhance horizontal and vertical strength, thereby minimizing deformation and improving recyclability.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Object-affected harmful factors

If bottles are made from organically-based biopolymer materials, then environmental friendliness and recyclability are improved, but structural stability and shelf life deteriorate due to susceptibility to deformation and paneling

Engineering Contradiction:
Improveenvironmental impactVSAvoidstructural stability
Core Design Contradiction:
Object-affected harmful factorsVSStability of the object's composition

Solution Approach 1:

The bottle structure is segmented into multiple discrete flat sides rather than a continuous smooth surface. This segmentation creates distinct panel regions separated by non-paneled circular regions, which prevents the propagation of deformation across the entire surface and reduces overall paneling susceptibility

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The invention transitions from a traditional cylindrical bottle shape to a polyhedral shape with multiple flat sides. This dimensional change from a continuous curved surface to discrete planar surfaces fundamentally alters the stress distribution and deformation characteristics, enhancing structural stability while maintaining the environmental benefits of biopolymer materials

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Ease of repair

If bottles are made from organically-based biopolymer materials, then recyclability is improved to 100%, but shelf life is reduced to six months or less due to structural integrity failure

Engineering Contradiction:
ImproverecyclabilityVSAvoidshelf life
Core Design Contradiction:
Ease of repairVSDuration of action of stationary object

Solution Approach 1:

The bottle is divided into multiple discrete flat sides with defined edges and corners. This segmentation creates a structure that better resists deformation over time, extending the functional lifespan of biopolymer bottles from six months or less to potentially longer durations while maintaining 100% recyclability

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The invention employs a composite structural approach combining multiple geometric elements (flat sides, ribbed regions, flared base) within the biopolymer material. This composite design enhances the overall structural integrity and durability, allowing the bottle to maintain its shape and function throughout an extended shelf life

Inventive Principle:
Principle #40Composite materials

3Stability of the object's composition

If traditional PET bottles are used, then structural stability is maintained, but environmental harm increases due to petroleum-based materials and low recycling rates

Engineering Contradiction:
Improvestructural stabilityVSAvoidenvironmental harm
Core Design Contradiction:
Stability of the object's compositionVSObject-generated harmful factors

Solution Approach 1:

The invention changes the material parameter from petroleum-based PET to organically-based biopolymer materials. This fundamental material substitution alters the environmental profile from harmful to beneficial, while the accompanying structural modifications ensure that structural stability is maintained or improved despite the material change

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentEP2429910A1Liquid containers
Publication Date: 2012.03.21 GREEN PLANET HLDG

AI summary

The present embodiments provide improved liquid containers having enhanced structural integrity. In one embodiment, the liquid container comprises a cap region (401), an upper panel region (403) disposed beneath the cap region, a non-paneled circular region (404) disposed beneath the upper panel region, a lower panel region (405) disposed beneath the non-paneled circular region (430), and at least one central panel region disposed between the non-paneled circular region and the lower panel region. The upper and lower panel regions each may comprise a plurality of discrete generally flat sides disposed about a circumference of the liquid container. Advantageously, the plurality of discrete generally flat sides about the circumference of the container may provide horizontal and vertical strength by reducing the amount of contiguous flat surface area. Further, various ribbed regions (410, 425, 426) may provide additional structural stability about the circumference of the container.