Encapsulated Benefit Agent Processing Without Formaldehyde Scavengers
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Solution Overview
Problem
Encapsulated benefit agents in personal care and fabric care compositions often require scavenger materials to manage residual by-products like formaldehyde, increasing formulation complexity and compatibility issues with raw materials.
Innovation Solution
Developing encapsulated benefit agent delivery compositions with reduced or no scavenger materials, using processes like centrifugation, filtration, and solvent exchange to minimize shell particles and manage by-product levels, thereby maintaining lower formaldehyde levels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If scavenger materials are introduced into the slurry to manage residual formaldehyde, then formaldehyde levels are controlled, but formulation complexity increases and compatibility issues arise with raw materials
Solution Approach 1:
The patent extracts and removes shell particles containing residual formaldehyde from the encapsulated benefit agent composition through filtration and centrifugation processes. This eliminates the need for scavenger materials by physically removing the source of formaldehyde residues, thereby controlling harmful factors without increasing formulation complexity
Solution Approach 2:
The patent uses filtration and centrifugation as intermediary processes to separate and remove shell particles from the composition. These intermediary steps effectively manage formaldehyde residues by removing the particles that contain them, avoiding the need to introduce scavenger materials that would complicate the formulation
2Object-affected harmful factors
If scavenger materials are introduced into the slurry to manage residual formaldehyde, then formaldehyde levels are controlled, but compatibility issues arise with raw materials
Solution Approach 1:
By extracting and removing shell particles through filtration and centrifugation, the patent eliminates the need for scavenger materials. This approach controls formaldehyde residues without introducing materials that could cause compatibility issues with various raw materials in personal care and fabric care compositions
Solution Approach 2:
The patent enables the encapsulated benefit agent composition to self-manage formaldehyde residues by removing shell particles that contain the residues. This self-service approach eliminates the need for additional scavenger materials, thereby maintaining compatibility with diverse raw materials while controlling harmful factors
3Productivity
If encapsulation processes are used to improve benefit agent delivery efficiency, then delivery efficiency is improved, but residual formaldehyde and shell particles are generated
Solution Approach 1:
The patent segments the encapsulated benefit agent composition into desired encapsulated particles and unwanted shell particles. Through filtration and centrifugation, the shell particles containing residual formaldehyde are separated and removed, allowing the beneficial encapsulated particles to maintain high delivery efficiency while eliminating harmful residues
Solution Approach 2:
The patent discards shell particles that contain residual formaldehyde through filtration and centrifugation processes. By removing these harmful by-products while retaining the beneficial encapsulated benefit agents, the process maintains high delivery efficiency while eliminating formaldehyde residues
4Productivity
If encapsulation processes are used to improve benefit agent delivery efficiency, then delivery efficiency is improved, but formulation complexity increases due to scavenger requirements
Solution Approach 1:
The patent segments the composition to separate encapsulated benefit agents from shell particles, removing the need for scavenger materials. This maintains high delivery efficiency while simplifying the formulation by eliminating the complexity associated with scavenger requirements
Solution Approach 2:
The patent discards shell particles through filtration and centrifugation, eliminating the need for scavenger materials. This approach maintains beneficial delivery efficiency while reducing formulation complexity by removing the requirement for additional scavenger components
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 approach results in compositions with improved delivery efficiency and reduced formaldehyde residues, simplifying formulation and enhancing compatibility with consumer product ingredients.
Implementation Method 1
The encapsulated benefit agent may be combined with one or more processing aids and/or carriers and subjected to one or more processing operations, such as, but not limited to, centrifugation, filtration, solvent exchange, flash evaporation, decantation, flotation separation, spray drying, reactive adsorption, reactive absorption, and combinations thereof, for a sufficient period of time to minimize the percentage of shell particles
Implementation Method 2
The encapsulated benefit agent may be combined with one or more processing aids and/or carriers and subjected to one or more processing operations, such as, but not limited to, centrifugation, filtration, solvent exchange, flash evaporation, decantation, flotation separation, spray drying, reactive adsorption, reactive absorption, and combinations thereof
Data Source
AI summary
The present application relates to encapsulated benefit agents, compositions comprising such encapsulated benefit agents and processes for making and using compositions comprising such encapsulated benefit agents that do not require or require a reduced amount of scavenger materials. Such encapsulated benefit agents, compositions comprising such encapsulated benefit agents are processed such that no or lower levels of scavenger materials are required.