Insulated Shipping Container With Compressed Compostable Plant Fill
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Solution Overview
Problem
Conventional insulated shipping containers are not biodegradable or recyclable, leading to environmental and disposal issues, and they suffer from insulation inefficiencies due to seams and large interstitial volumes, which compromise thermal performance.
Innovation Solution
A shipping container made from biodegradable materials, using compressed pellets or granules of compostable insulating plant material, such as corn starch, with a compression ratio of at least 1.25:1, to provide thermal insulation comparable to EPS, and secured by staples or partitions, minimizing interstitial volume and preventing material migration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If conventional EPS insulation material is used, then thermal insulation is provided, but the material is not biodegradable and creates environmental disposal issues
Solution Approach 1:
The patent changes the material composition parameter from synthetic EPS to compressed plant-based granules (corn starch, wood chips, or other biodegradable materials), maintaining thermal insulation performance while achieving biodegradability and environmental compatibility
Solution Approach 2:
The invention uses composite construction with an outer box, inner box, and compressed plant-based insulation material between them, creating a multi-component system that achieves both thermal performance and environmental sustainability
2Ease of manufacture
If loose-fill insulation material is used, then the container is easy to manufacture, but large interstitial volumes reduce insulation efficiency
Solution Approach 1:
The insulation material is pre-compressed to a high density ratio (at least 1.25:1, preferably 1.5:1 or 2:1) before placement in the container, eliminating the need for complex installation processes while maximizing insulation efficiency by minimizing air gaps and interstitial volumes
Solution Approach 2:
The patent changes the density parameter of the insulation material through compression, transforming loose-fill granules into a compacted mass that fills voids and eliminates thermal bridges, thereby reducing energy loss while maintaining manufacturing simplicity
3Object-generated harmful factors
If compressed plant-based insulation material is used, then biodegradability and insulation efficiency are improved, but the material may migrate during shipping
Solution Approach 1:
The patent introduces a flexible barrier layer (plastic bag or film) between the compressed insulation material and the product, preventing direct contact and material migration while allowing the compressed granules to maintain their compacted form and insulation performance
Solution Approach 2:
The barrier layer acts as an intermediary between the compressed plant-based insulation material and the shipped product, preventing contamination and migration while maintaining the thermal insulation function
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 achieves effective temperature regulation and shock absorption while being fully recyclable or biodegradable, outperforming conventional EPS containers in thermal insulation and reducing environmental impact.
Implementation Method 1
a compressed mass of compostable insulating plant material of pellet/granular form received in said cavity and around said interior box
Implementation Method 2
the present container is especially configured and constructed to provide both shock absorption
Data Source
AI summary
An insulating shipping container includes an exterior box formed of paper defining a cavity and an interior box formed of paper and positioned within said cavity. The interior box defines a product cavity. A compressed mass of compostable insulating plant material is received in the cavity and around the interior box and covered by a collar.