Oolitic Aragonite Beads Replace Plastic Microbeads

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Solution Overview

Problem

Current personal care and cosmetic products rely on plastic microbeads that pollute the environment and are not biodegradable, posing risks to ecosystems and human health due to their persistence and ability to bind toxins.

Innovation Solution

Development of a method to produce ground aragonite particles with controlled particle size distribution using a ball mill system with metal grinding media and air classification, which are then used to create oolitic aragonite beads for use in cosmetic compositions, replacing plastic microbeads and providing scrubbing properties while being biodegradable.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If plastic microbeads are used in personal care products, then scrubbing properties are provided, but environmental pollution and toxicity concerns arise

Engineering Contradiction:

Improvescrubbing propertiesVSAvoidenvironmental pollution

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The invention changes the material parameter from synthetic plastic to natural biodegradable materials (cellulose, starch, proteins, lipids, alginates, chitosan), maintaining the functional properties (scrubbing, exfoliation) while eliminating environmental harm through biodegradability

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The patent employs biodegradable microbeads that are designed to break down naturally after use, replacing persistent plastic beads with environmentally benign alternatives that decompose into harmless natural components

Inventive Principle:

Principle #27Cheap short-living objects (Disposable)

2Manufacturing precision

If ground calcium carbonate is produced using wet grinding process, then particle size distribution is achieved, but the process is not environmentally favorable and produces commodity grade product

Engineering Contradiction:

Improveparticle size distributionVSAvoidenvironmental impact

Core Design Contradiction:

Manufacturing precisionVSObject-affected harmful factors

Solution Approach 1:

The invention replaces the conventional wet mechanical grinding process with a biogenic approach, allowing natural formation of calcium carbonate particles through biological processes, thereby eliminating the need for energy-intensive mechanical grinding and associated environmental impacts

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent utilizes biogenic processes where living organisms naturally produce calcium carbonate with desired particle size distributions, eliminating the need for industrial processing and allowing the system to self-organize the particle morphology and size

Inventive Principle:

Principle #25Self-service

3Reliability

If microplastic particles are used in cosmetic products, then exfoliating function is provided, but they bind and concentrate environmental toxins entering the food chain

Engineering Contradiction:

Improveexfoliating functionVSAvoidtoxin concentration

Core Design Contradiction:

ReliabilityVSObject-generated harmful factors

Solution Approach 1:

The invention changes the chemical composition parameter from synthetic polymer to natural biodegradable materials, which do not have the same toxin-binding properties as plastics, thereby maintaining exfoliation function while eliminating toxin concentration and transfer to the food chain

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

The method produces aragonite particles with a clean top size distribution, reducing environmental pollution and ensuring the beads are safe for human use, offering a biodegradable alternative for exfoliating and cosmetic applications without the toxicity concerns of plastic microbeads.

Implementation Method 1

milling the dried aragonite particles in a ball mill, wherein the ball mill includes metal grinding media

Methodology Applied

Scientific EffectMechanical Force: Mechanical Force

Implementation Method 2

separating the ground aragonite particles in an air classifier that separates the ground aragonite particles having a selected particle size distribution

Methodology Applied

Scientific EffectAir classification: Cyclone Separation

Data Source

PatentUS11383988B2Oolitic aragonite beads and methods therefor

Publication Date: 2022.07.12 CALCEAN MINERALS & MATERIALS LLC

AI summary

Disclosed herein are personal care and/or cosmetic compositions, comprising a carrier and oolitic aragonite beads having an average diameter between 10 nm to 10 mm. Also disclosed herein are methods of reducing plastic contamination and/or pollution comprising making a cosmetic or personal care composition, wherein at least a portion to all (100%) of the plastic microbeads in the cosmetic or personal care composition are replaced with oolitic aragonite. Also disclosed herein are a milling system and milling methods for producing oolitic aragonite particles having a clean top size in which the particles are screened to remove any oversized particles. Additional uses include drug-loaded aragonite particles for therapeutic drug delivery and chromatography media.