Strippable Latex Coating for Aerosol Encapsulation of Hazardous Powders

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Solution Overview

Problem

There is a need for technologies that effectively prevent the inhalation and cross-contamination of potentially deadly aerosols and powders, particularly for individuals working in positions that may expose them to harmful substances like fentanyl, biological agents, and other mass casualty agents, as existing methods fail to adequately contain or encapsulate these substances, posing a risk of secondary exposure.

Innovation Solution

A composition comprising a latex polymer component, an anti-freeze component, antimicrobial agents, and other additives, applied as an aerosol spray or misting agent, forms a strippable coating that encapsulates harmful substances, preventing inhalation and allowing for safe removal and analysis, suitable for use on various surfaces and substrates.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If existing containment methods are used, then some protection is provided, but they fail to adequately contain or encapsulate harmful substances, posing a risk of secondary exposure

Engineering Contradiction:
Improvecontainment effectivenessVSAvoidsecondary exposure risk
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent applies a flexible polymer coating that forms a thin film encapsulation around harmful substances. This coating creates a physical barrier that contains the hazardous material while remaining thin enough to be applied as a surface layer, providing reliable containment without excessive bulk or complexity

Inventive Principle:
Principle #30Flexible shells and thin films

Solution Approach 2:

The patent uses a composite material system consisting of multiple polymer components (including polyurethane and acrylic resins) combined with reactive diluents and catalysts. This composite formulation creates a cohesive encapsulation matrix that effectively binds harmful substances while providing chemical resistance and structural integrity for reliable containment

Inventive Principle:
Principle #40Composite materials

2Reliability

If a coating is applied to encapsulate harmful substances, then containment is improved, but the coating must be easily removable for analysis

Engineering Contradiction:
Improveencapsulation effectivenessVSAvoidremoval difficulty
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The patent creates a coating with dynamic properties that allow it to transition from a stable encapsulation state to a removable state. The polymer formulation includes components that enable the coating to be intentionally detached or peeled away, facilitating easy removal for analysis while maintaining reliable containment during the encapsulation phase

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent utilizes parameter changes in the polymer coating properties to enable easy removal. By controlling factors such as polymer flexibility, adhesion characteristics, and film integrity, the coating can be designed to maintain strong encapsulation during application and curing, then allow for straightforward removal when needed for analysis or disposal

Inventive Principle:
Principle #35Parameter changes

3Area of stationary object

If the composition is applied as an aerosol spray, then coverage is improved, but the viscosity must be low enough for spray application

Engineering Contradiction:
Improvesurface coverageVSAvoidviscosity control
Core Design Contradiction:
Area of stationary objectVSManufacturing precision

Solution Approach 1:

The patent formulates the composition as an aerosol sprayable composition, utilizing pneumatic principles for application. The viscosity is controlled to allow proper atomization and spray distribution, enabling effective coverage of surfaces and contaminants while maintaining the necessary flow characteristics for aerosol delivery systems

Inventive Principle:
Principle #29Pneumatics and hydraulics

4Object-affected harmful factors

If the coating encapsulates harmful substances, then secondary exposure is prevented, but the harmful substances must be preserved for analysis

Engineering Contradiction:
Improvesecondary exposure preventionVSAvoidsubstance degradation
Core Design Contradiction:
Object-affected harmful factorsVSLoss of substance

Solution Approach 1:

The patent employs a disposable encapsulation coating that provides temporary but effective containment. The coating is designed to be applied, allow the harmful substance to dry within it, and then be removed as a single unit for analysis. This disposable approach prevents secondary exposure during the containment period while preserving the substance integrity for subsequent analysis, eliminating the need for long-term maintenance or complex recovery systems

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

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 composition effectively encapsulates and contains harmful substances, reducing the risk of secondary exposure and facilitating safe decontamination, while being non-toxic and non-flammable, and can be easily removed by peeling, preserving the substance for analysis.

Implementation Method 1

the composition is capable of being applied to a surface to create a strippable coating on the surface

Methodology Applied
Scientific EffectDeposition: Deposition (physical)

Implementation Method 2

an anti-freeze component, where the composition has a viscosity of less than or equal to about 90 cP

Methodology Applied
Scientific EffectFreezing point depression: Freezing

Data Source

PatentUS11292935B2Composition for encapsulation and containment of substances
Publication Date: 2022.04.05 TRU BLOC LLC
  • US11292935B2 patent drawing
  • US11292935B2 patent drawing
  • US11292935B2 patent drawing

AI summary

Provided is a latex-based composition capable of being applied to a surface to form a strippable coating on the surface that can encapsulate substances. The composition may include a latex polymer component and an anti-freeze component, and have a viscosity of less than or equal to about 90 cP. The composition may be delivered as an aerosol spray or a misting agent.