Non-cellulosic Polysaccharide with Mixed Cationic Substituents
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Solution Overview
Problem
Current conditioning polymers in surfactant-based cleansing formulations often cause unwanted buildup on hair and fail to deliver conditioning agents uniformly along the hair fiber, particularly to the damaged middle and tip sections, and also lack efficiency in delivering antimicrobial compounds to the scalp.
Innovation Solution
A surfactant-based cleansing composition featuring a non-cellulosic cationically modified polysaccharide with a mixture of at least two quaternary ammonium groups having different alkyl substituents covalently attached to the polysaccharide backbone, which acts as a deposition agent to improve uniformity of silicone and active material distribution on hair and skin.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional conditioning polymers are used in surfactant-based cleansing formulations, then conditioning effects are provided, but unwanted buildup occurs on hair and uniform deposition along the hair fiber is not achieved
Solution Approach 1:
The invention changes the chemical parameters of the conditioning polymer by using a non-cellulosic polysaccharide with mixed cationic substituents (combining quaternary ammonium groups with different alkyl chain lengths). This parameter change in molecular structure enables the polymer to provide conditioning effects while reducing unwanted buildup on hair, as the diverse substituent structure improves solubility and deposition characteristics compared to conventional single-substituent polymers.
Solution Approach 2:
The invention creates a composite polymer structure by combining multiple cationic substituent types (quaternary ammonium groups with different alkyl chains) on a single non-cellulosic polysaccharide backbone. This composite material approach allows the polymer to simultaneously achieve uniform deposition along the hair fiber and provide effective conditioning, while the varied structure prevents excessive buildup that occurs with homogeneous conventional polymers.
2Reliability
If conventional conditioning polymers are used, then some conditioning is provided, but uniform delivery of conditioning agents to damaged middle and tip sections of hair is not achieved
Solution Approach 1:
The invention applies local quality by designing a polymer with mixed cationic substituents that create zones of different charge densities and hydrophobicity along the polymer chain. This local variation in properties enables the polymer to interact differently with various sections of the hair fiber, ensuring uniform deposition of conditioning agents to damaged middle and tip sections while maintaining overall conditioning performance.
Solution Approach 2:
By changing the substituent structure to include multiple types of quaternary ammonium groups with different alkyl chain lengths, the invention modifies the polymer's interaction parameters with hair surfaces. This parameter change enables more uniform electrostatic and hydrophobic interactions along the entire hair fiber length, achieving consistent deposition of conditioning agents to damaged areas.
3Reliability
If conventional cationic polysaccharides are used, then conditioning effects are achieved, but efficient delivery of antimicrobial compounds to the scalp is not provided
Solution Approach 1:
The invention achieves multi-functionality by designing a single non-cellulosic polysaccharide polymer that simultaneously provides conditioning effects and serves as an efficient delivery vehicle for antimicrobial compounds. The mixed cationic substituent structure enables the polymer to interact with both hair surfaces for conditioning and scalp surfaces for antimicrobial delivery, making it a universal agent for multiple functions that conventional single-substituent polymers cannot achieve.
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 reduces hair combing energy, enhances lubricity and softness, and improves deposition of actives like zinc and colorants, providing more effective conditioning and antimicrobial delivery while minimizing buildup.
Implementation Method 1
a non-cellulosic cationically modified polysaccharide comprising a mixture of at least two quaternary ammonium groups... covalently attached to the polysaccharide backbone
Data Source
AI summary
The present invention is related to the use of a non-cellulosic cationically modified polysaccharide in cleaning compositions and more particularly to a surfactant based cleansing composition comprising, a surfactant, a non-cellulosic cationically modified polysaccharide and a solvent for use in personal care composition, household care composition or an institutional care composition.