Branched Polyetheramine Polyol Lipase Detergent Composition

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Solution Overview

Problem

Laundry detergents face challenges in effectively removing various types of soiling, such as pigments, clay, fatty soils, and food stains like red wine, tea, and coffee, while also requiring storage stability, especially in liquid forms or those containing hygroscopic ingredients. Additionally, automatic dishwashing detergents struggle with fatty soils despite existing solutions.

Innovation Solution

The development of detergent compositions comprising at least one lipase and a branched polyetheramine polyol with specific polydispersity, along with anionic surfactants and other additives, which enhance cleaning efficacy and storage stability. These compositions include lipases with defined activities and branched polyetheramine polyols derived from trialkanolamines, improving the removal of organic fatty soils and non-bleachable stains without leaving residues.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If laundry detergents contain hygroscopic ingredients or are in liquid form, then cleaning performance is improved, but storage stability deteriorates

Engineering Contradiction:

Improvecleaning performanceVSAvoidstorage stability

Core Design Contradiction:

ProductivityVSStability of the object's composition

Solution Approach 1:

The patent uses a complexing agent as an intermediary substance that binds metal ions and stabilizes the detergent composition. This mediator allows the formulation to maintain both liquid form (for cleaning performance) and storage stability by preventing unwanted chemical reactions during storage.

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent adjusts pH levels and compositional parameters to optimize both liquid stability and storage characteristics. By carefully controlling pH and ingredient ratios, the formulation maintains its liquid state for effective cleaning while preventing degradation during storage.

Inventive Principle:

Principle #35Parameter changes

2Productivity

If detergent compositions use conventional polymers and surfactants, then general cleaning is achieved, but fatty soil removal in automatic dishwashing is insufficient

Engineering Contradiction:

Improvefatty soil removalVSAvoidcomposition complexity

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

The patent employs a composite detergent composition combining lipase enzyme, anionic surfactants, and branched polyetheramine polyol. This composite approach leverages the synergistic effects of different components - lipase for enzymatic fat breakdown, surfactants for emulsification, and polyol for adhesion and film formation - achieving superior fatty soil removal without excessive complexity.

Inventive Principle:

Principle #40Composite materials

Solution Approach 2:

The patent applies specific functional components to target fatty soils locally. The lipase enzyme is specifically deployed for its fat-hydrolyzing capability, while the branched polyetheramine polyol provides localized adhesion promotion and film formation on dish surfaces, ensuring effective fatty soil removal where needed.

Inventive Principle:

Principle #3Local quality

3Ease of manufacture

If detergent formulations use simple ingredients, then manufacturing is easier, but removal of tough stains like berry juices is insufficient

Engineering Contradiction:

Improveformulation simplicityVSAvoidstain removal capability

Core Design Contradiction:

Ease of manufactureVSProductivity

Solution Approach 1:

The patent modifies key parameters including pH level, enzyme concentration, and polyol molecular weight to enhance stain removal capability. These parameter adjustments allow the formulation to tackle tough stains like berry juices while maintaining relatively simple manufacturing processes.

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The patent creates a composite system integrating lipase enzyme for enzymatic breakdown of stain components, anionic surfactants for emulsification and lifting, and branched polyetheramine polyol for adhesion and film formation. This composite approach delivers enhanced stain removal performance without significantly complicating the formulation or manufacturing process.

Inventive Principle:

Principle #40Composite materials

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 compositions demonstrate excellent fat removal behavior and improved cleaning performance for organic soils, maintaining enzymatic activity stability and effectively removing tough stains like berry juices from laundry, while maintaining storage stability and avoiding residue issues.

Implementation Method 1

at least one lipase

Methodology Applied

Scientific EffectEnzyme catalysis: Enzyme

Implementation Method 2

lipase activity (or lipolytic activity; triacylglycerol lipase, EC 3.1.1.3)

Methodology Applied

Scientific EffectHydrolysis: Hydrolysis

Implementation Method 3

branched polyetheramine polyol with a polydispersity (Mw/Mn) in the range of from 5 to 25

Methodology Applied

Scientific EffectSurfactant action: Surfactant

Data Source

PatentEP3781659B1Compositions and polymers useful for such compositions

Publication Date: 2022.08.17 BASF SE

AI summary

Composition comprising (A) at least one lipase, (B) at least one branched polyetheramine polyol with a polydispersity (Mw/Mn) in the range of from 5 to 25, wherein said branched polyetheramine polyol is based on a polycondensa- tion product of at least one trialkanolamine.