Starch-Bound Puffed Cereal Containers for Food Insulation

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Solution Overview

Problem

Existing food containers, particularly those made of polystyrene foam, are non-biodegradable, pose environmental risks, and require centralized production, leading to high costs and logistical challenges, while existing biodegradable alternatives are either prohibited by EU regulations or require industrial facilities for production.

Innovation Solution

A biodegradable container made of puffed and pressed cereal seeds bound by starch, produced through a high-temperature cooking process, allowing self-production and compliance with eco-sustainability regulations, with optional internal biodegradable layers for moisture protection.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Temperature

If polystyrene foam is used for food containers, then thermal insulation and low cost are improved, but environmental biodegradability deteriorates

Engineering Contradiction:
Improvethermal insulationVSAvoidenvironmental biodegradability
Core Design Contradiction:
TemperatureVSObject-affected harmful factors

Solution Approach 1:

The patent changes the material parameter from synthetic polystyrene foam to natural puffed cereal seeds bound by starch, transforming the chemical composition while maintaining the physical structure needed for thermal insulation. This parameter change enables biodegradability while preserving the insulating properties through the air-trapping porous structure of puffed cereals.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The container is constructed as a composite material system combining puffed cereal seeds with starch binder, creating a new material with both insulating properties from the puffed structure and biodegradability from natural components. The composite approach allows optimization of both thermal performance and environmental compatibility.

Inventive Principle:
Principle #40Composite materials

2Ease of manufacture

If polystyrene foam containers are produced, then manufacturing ease and low cost are improved, but centralized production requirements worsen

Engineering Contradiction:
Improvemanufacturing easeVSAvoidproduction centralization
Core Design Contradiction:
Ease of manufactureVSDevice complexity

Solution Approach 1:

The patent enables end-users to produce their own containers by puffing cereal seeds and binding them with starch, eliminating the need for centralized industrial production facilities. The process uses simple equipment and readily available materials, allowing local self-sufficient manufacturing at the point of use.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The production process is segmented into simple, independent steps (puffing, binding, forming) that can be performed with basic equipment. This segmentation allows the manufacturing process to be distributed across many small locations rather than requiring centralized large-scale production facilities.

Inventive Principle:
Principle #1Segmentation

3Temperature

If polystyrene foam is used, then thermal insulation performance is improved, but harmful substance release in fire worsens

Engineering Contradiction:
Improvethermal insulation performanceVSAvoidtoxic gas release
Core Design Contradiction:
TemperatureVSObject-generated harmful factors

Solution Approach 1:

The patent converts the potential harm of fire exposure by using natural materials that, when burned, produce minimal toxic substances compared to synthetic plastics. The organic composition of puffed cereals and starch results in combustion products that are far less hazardous to human health and the environment.

Inventive Principle:
Principle #22Blessing in disguise (Convert harm into benefit)

4Object-affected harmful factors

If existing biodegradable alternatives are used, then environmental compatibility is improved, but production facility requirements worsen

Engineering Contradiction:
Improveenvironmental compatibilityVSAvoidproduction facility requirements
Core Design Contradiction:
Object-affected harmful factorsVSEase of manufacture

Solution Approach 1:

The patent eliminates the need for industrial production facilities by enabling end-users to manufacture biodegradable containers themselves using simple equipment and common materials like cereal seeds and starch, making environmental compatibility accessible without complex production infrastructure.

Inventive Principle:
Principle #25Self-service

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 container provides thermal insulation, is safe, reduces environmental impact, and allows user-friendly production, meeting regulatory requirements and lowering costs.

Implementation Method 1

being thermally insulating, so as to protect a cold food from the external environmental heat

Methodology Applied
Scientific EffectThermal insulation: Thermal Insulation

Implementation Method 2

a structure with one or more layers of puffed and pressed cereal seeds

Methodology Applied
Scientific EffectThermal expansion: Thermal Expansion

Data Source

PatentEP4422987B1Biodegradable container
Publication Date: 2025.10.22 GREEN INNOVA SRL
  • EP4422987B1 patent drawingFigure 1

AI summary

The present invention relates to a biodegradable container (10) comprising a structure with one or more layers of puffed and pressed cereal seeds, bound together by a quantity of starch of said cereal seeds; the use of such container for storing and transporting foods, such as ice cream in particular; and a method for manufacturing it.