Derivatized Polysaccharide Clarity in Phosphate Ester Surfactant Systems
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Solution Overview
Problem
Current personal care and household care formulations face challenges in achieving enhanced conditioning performance, improved clarity, and reduced buildup on substrates without the need for removal of insoluble materials or solvents, while maintaining effective deposition of active materials and aesthetics.
Innovation Solution
The process involves reacting polysaccharide polymers with water, caustic, and surfactants in an aqueous-based process, potentially using oxidizing agents or biochemical agents to reduce molecular weight and incorporate anionic, nonionic, or cationic moieties, resulting in polysaccharide compositions with high clarity and improved deposition properties.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If cationic polysaccharide polymers are added to improve conditioning performance and deposition of active materials, then the formulation achieves better rheology and conditioning benefits, but the formulation becomes opaque and unstable due to interactions with surfactants
Solution Approach 1:
The patent introduces anionic polysaccharide polymers as intermediary substances that mediate between cationic conditioning agents and anionic surfactants. These anionic polysaccharides form stable complexes with cationic polymers, preventing direct interaction between cationic and anionic components that would cause opacity and instability, thereby maintaining both conditioning performance and formulation clarity
Solution Approach 2:
The patent creates composite polysaccharide systems combining anionic and cationic polymers in specific ratios. This composite approach allows the formulation to achieve synergistic effects where the composite material provides both the conditioning benefits of cationic polymers and the surfactant compatibility of anionic polymers, resolving the contradiction between performance and clarity
2Adaptability or versatility
If insoluble components such as protein components are present in the polysaccharide polymer, then the polymer provides natural origin benefits, but the formulation becomes unstable and opaque due to interaction with surfactants
Solution Approach 1:
The patent selectively extracts and removes insoluble protein components from natural polysaccharide sources while retaining the beneficial polysaccharide structure. This extraction process eliminates the harmful protein-surfactant interactions that cause opacity and instability, while preserving the natural origin benefits and conditioning properties of the polysaccharide polymer
Solution Approach 2:
The patent applies parameter changes by controlling the degree of polysaccharide derivation and molecular weight to optimize solubility. By adjusting these parameters, the formulation maintains natural origin benefits while achieving sufficient solubility to prevent surfactant interactions that lead to instability and opacity
3Ease of operation
If cationic polymers are used to reduce wet and dry combing force, then conditioning benefits are achieved, but the formulation loses optical clarity
Solution Approach 1:
The patent uses anionic polysaccharide polymers as intermediary substances that allow cationic conditioning polymers to function without directly interacting with anionic surfactants. This intermediary approach enables the cationic polymer to reduce combing force while the anionic polysaccharide maintains formulation clarity by preventing aggregate formation
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
This approach produces polysaccharide compositions with high clarity and enhanced deposition of conditioning agents, reducing buildup and improving the aesthetic and functional properties of personal care and household care products, such as shampoos and detergents, while maintaining effective performance across a range of surfactant systems.
Implementation Method 1
reacting the polysaccharide polymer or derivatized polysaccharide polymer for a sufficient time and at a sufficient temperature with an oxidizing agent such as hydrogen peroxide or other reactant such as hydrolytic or proteolytic enzymes, acids, or other agents that reduce the molecular weight
Implementation Method 2
reacting a polysaccharide polymer or derivatized polysaccharide polymer for a sufficient time and at a sufficient temperature in the presence of water, caustic and at least one surfactant
Data Source
AI summary
A personal or household care product includes cationic, nonionic or cationic/nonionic derivatized polysaccharide in combination with a phosphate ester surfactant. The derivatized polysaccharide polymer is formed by reacting the polysaccharide ester surfactant for a sufficient time and at a sufficient temperature in the presence of water, caustic, and at least one surfactant. The polysaccharide polymer may optionally be reacted with an oxidizing agent, hydrolytic or proteolytic enzymes, molecular weight reducing agents and a cationizing agent and nonionic agent. The formed derivatized polysaccharide has a lower clarity in water than in an aqueous surfactant system.