Cationic Dextran Hair Conditioner for Silicone-Free Conditioning
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Solution Overview
Problem
There is a growing concern among consumers regarding the persistence and potential toxicity of silicone-based conditioning agents in conventional hair conditioners, particularly D4 and D5, necessitating the development of silicone-free alternatives that provide effective conditioning benefits and have a higher natural origin index.
Innovation Solution
A hair conditioner formulation using a cationic dextran polymer functionalized with morpholine and quaternary ammonium groups, with a molecular weight of 10,000 to 3,000,000 Daltons, which effectively restores hydrophobicity to damaged hair and reduces combing force, while maintaining a high natural origin index.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If silicone-based conditioning agents (D4, D5) are used in conventional hair conditioners, then effective conditioning benefits are provided, but consumer concerns arise regarding persistence, potential toxicity, and environmental impact
Solution Approach 1:
The patent changes the chemical composition parameters by replacing silicone-based agents with cationic dextran polymer, functionalizing it with morpholine and quaternary ammonium groups to achieve both effectiveness and safety
Solution Approach 2:
The invention creates a composite polymer structure combining dextran base with multiple functional groups (morpholine and quaternary ammonium) to achieve multifunctional conditioning properties without silicone
2Object-affected harmful factors
If silicone-free alternative conditioning agents are developed, then consumer safety and environmental concerns are addressed, but achieving effective conditioning benefits becomes more challenging
Solution Approach 1:
The patent adjusts molecular weight parameters (10,000 to 3,000,000 Daltons) and functional group composition to optimize both safety and conditioning performance of the cationic dextran polymer
Solution Approach 2:
The invention introduces specific functional groups (morpholine and quaternary ammonium) at specific locations on the dextran polymer structure to provide localized conditioning activity while maintaining overall safety
3Reliability
If conventional conditioning agents are used, then conditioning benefits are achieved, but the natural origin index is reduced
Solution Approach 1:
The patent uses dextran as a natural polysaccharide base and modifies it through chemical functionalization to achieve high natural origin index while maintaining conditioning effectiveness
Solution Approach 2:
The cationic dextran polymer acts as an intermediary between natural ingredients and hair, providing conditioning benefits through its cationic groups that interact with anionic hair surfaces
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 formulation provides improved conditioning benefits by reducing the force required for combing and enhancing hydrophobicity, while avoiding the use of silicone-based ingredients, thus addressing consumer concerns about toxicity and environmental impact.
Implementation Method 1
a conditioning polymer, wherein the conditioning polymer is cationic dextran polymer, comprising a dextran base polymer functionalized with morpholine groups and quaternary ammonium groups
Data Source
AI summary
A hair conditioner formulation is provided, comprising: a vehicle; and a conditioning polymer, wherein the conditioning polymer is a cationic dextran polymer, comprising a dextran base polymer functionalized with morpholine groups and quaternary ammonium groups; wherein the dextran base polymer has a weight average molecular weight of 10,000 to 3,000,000 Daltons; wherein the morpholine groups are of formula (II) bound to a pendent oxygen on the dextran base polymer (II); and wherein the quaternary ammonium groups are of formula (III) bound to a pendent oxygen on the dextran base polymer (III); wherein (I) is a pendent oxygen on the dextran base polymer; wherein A and X are a divalent linking group; wherein R2 is a linear or branched C1-4 alkyl group; wherein R3 is a linear or branched C8-20 alkyl group.