Biodegradable Aliphatic Polyester Outdoor Display Objects

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Solution Overview

Problem

Temporary outdoor display objects such as marker flags, yard signs, boundary tapes, and grass depth gauges are typically made from non-biodegradable materials, leading to pollution and unsightly debris after use, as they often end up in water bodies and landscapes.

Innovation Solution

The development of biodegradable plastic materials, specifically aliphatic polyester produced from diacids and diol monomers, is used to manufacture these objects, allowing for attachment via heat welding or adhesives, ensuring complete biodegradability.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If non-biodegradable plastic materials are used to manufacture temporary outdoor display objects, then the objects maintain durability and structural integrity during use, but they create pollution and unsightly debris after use

Engineering Contradiction:
Improvestructural integrityVSAvoidpollution
Core Design Contradiction:
StrengthVSObject-generated harmful factors

Solution Approach 1:

The patent changes the material parameter from non-biodegradable plastic to biodegradable plastic, allowing the material to maintain structural integrity during use while naturally decomposing after use, thereby eliminating pollution without sacrificing functional performance

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent employs biodegradable plastic materials that are designed to be temporary and disposable, naturally decomposing after their useful life ends, eliminating the need for disposal and preventing long-term environmental pollution while maintaining adequate strength during the temporary display period

Inventive Principle:
Principle #27Cheap short-living objects (Disposable)

2Object-generated harmful factors

If biodegradable plastic materials are used to manufacture temporary outdoor display objects, then pollution is reduced and objects decompose naturally, but the materials may have reduced durability compared to non-biodegradable plastics

Engineering Contradiction:
Improvepollution reductionVSAvoiddurability
Core Design Contradiction:
Object-generated harmful factorsVSDuration of action of stationary object

Solution Approach 1:

The patent modifies the material composition to use biodegradable plastics with controlled degradation rates, ensuring the material maintains sufficient durability throughout the intended temporary display period while naturally decomposing afterward, thus balancing both durability and environmental sustainability

Inventive Principle:
Principle #35Parameter changes

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

This solution effectively reduces pollution by allowing these objects to decompose naturally, eliminating the environmental impact of non-biodegradable plastics and promoting cleaner landscapes.

Implementation Method 1

made entirely of a biodegradable plastic material

Methodology Applied
Scientific EffectBiodegradation: Decomposition (biological)

Implementation Method 2

biodegradable plastic material, specifically aliphatic polyester produced from diacids and diol monomers

Methodology Applied
Scientific EffectPolymerization: Photopolymerisation

Implementation Method 3

The plastic sheet is attached to the stake either by heat welding or by an adhesive

Methodology Applied
Scientific EffectHeat welding: Welding

Data Source

PatentUS20240233586A1Temporary Biodegradable Outdoor Display Objects
Publication Date: 2024.07.11 GREEN IP LLC
  • US20240233586A1 patent drawing
  • US20240233586A1 patent drawing
  • US20240233586A1 patent drawing

AI summary

Temporary biodegradable outdoor display objects including marker flags, yard signs, boundary tapes, and grass depth gauges. The objects are all formed from a bioplastic material comprising a biodegradable aliphatic polyester produced from diacids selected from the group consisting of adipic acid and succinic acid, and combinations thereof and diol monomers selected from the group consisting of ethylene glycol, propanediol, butanediol, and hexanediol, and an effective amount of melt strength enhancer.