Bio-Based Solvent Composition for Low-Toxicity Cleaning

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Solution Overview

Problem

Current solvent compositions used in various industries, particularly in paints and varnishes, lack low toxicity and biodegradability, posing health and environmental risks.

Innovation Solution

A solvent composition based on natural, non-petrochemical components, such as lactic acid ester, aliphatic alcohols, and aliphatic acid esters derived from vegetable fermentation, offering high solvent power with reduced toxicity and biodegradability.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Quantity of substance

If traditional petrochemical solvents are used, then high solvent power is achieved, but toxicity and environmental harm increase

Engineering Contradiction:
Improvesolvent powerVSAvoidtoxicity
Core Design Contradiction:
Quantity of substanceVSObject-affected harmful factors

Solution Approach 1:

The patent changes the chemical composition parameters by replacing petrochemical solvents with bio-based solvents (ethyl lactate, isobutanol, ethyl acetate) derived from renewable resources, maintaining solvent power while reducing toxicity and improving biodegradability

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The invention uses a composite solvent system combining multiple bio-based components (ethyl lactate at 30-70%, isobutanol at 20-50%, ethyl acetate at 0-8%) to achieve both high solvent power and low toxicity, where each component contributes specific properties to the overall performance

Inventive Principle:
Principle #40Composite materials

2Quantity of substance

If traditional petrochemical solvents are used, then high solvent power is achieved, but biodegradability decreases

Engineering Contradiction:
Improvesolvent powerVSAvoidbiodegradability
Core Design Contradiction:
Quantity of substanceVSReliability

Solution Approach 1:

The patent changes the source parameter of the solvents from non-renewable petrochemical origin to renewable biological origin, ensuring high biodegradability while maintaining effective solvent power through appropriate selection of bio-based compounds

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The invention converts the typically harmful petrochemical solvent system into a beneficial bio-based system that is easily biodegradable, turning a environmental hazard into an environmentally friendly solution that maintains functional performance

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

3Object-affected harmful factors

If bio-based solvents are used, then toxicity is reduced, but solvent power may be compromised

Engineering Contradiction:
ImprovetoxicityVSAvoidsolvent power
Core Design Contradiction:
Object-affected harmful factorsVSQuantity of substance

Solution Approach 1:

The patent creates a composite solvent mixture where ethyl lactate provides primary solvent power, isobutanol enhances cleaning ability, and ethyl acetate contributes to overall performance, achieving both low toxicity and high solvent power through synergistic combination

Inventive Principle:
Principle #40Composite materials

Solution Approach 2:

The invention optimizes the concentration parameters of each bio-based component within specific ranges (ethyl lactate: 30-70%, isobutanol: 20-50%, ethyl acetate: 0-8%) to maintain effective solvent power while preserving the low toxicity characteristics of the bio-based formulation

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 solvent composition demonstrates comparable or higher solvent power to traditional solvents like white spirit, with significantly lower toxicity and high biodegradability, as evidenced by aggressive cleaning performance and environmental sustainability.

Implementation Method 1

solvents are used both as diluents and to remove stains and traces of dye from solid surfaces

Methodology Applied
Scientific EffectSolvent action: Solvation

Implementation Method 2

produced by the fermentation of carbohydrates, such as, by way of example, glucose, fructose, sucrose, starches and cellulose

Methodology Applied
Scientific EffectFermentation: Fermentation

Data Source

PatentEP3693418A1A solvent composition
Publication Date: 2020.08.12 LIBERTY CHEM SRL
  • EP3693418A1 patent drawing
  • EP3693418A1 patent drawing

AI summary

The present invention relates to a solvent composition, in particular a solvent composition with components of natural, non-petrochemical origin. In particular, the present invention relates to a solvent composition based on compounds of vegetable origin deriving from the fermentation of carbohydrates, wherein in particular said carbohydrates are selected from glucose, fructose, sucrose, starches, cellulose and mixtures thereof.