Deodorant Composition Viscosity Stability via Stearyl Ether Emulsifier Blends
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Solution Overview
Problem
Formulating a deodorant composition that balances esthetic properties like smoothness, non-oiliness, and non-tackiness while maintaining stability and preventing phase separation, which is challenging due to the difficulty in using specific components that provide the desired viscosity and stability without requiring shaking before each use.
Innovation Solution
A deodorant composition comprising a non-aluminum odor-reducing agent, a non-volatile ether emollient, calcium silicate, and a blend of different stearyl ethers as an emulsifier, with the emulsifier present in a specific weight percentage range, which provides a stable viscosity and resistance to phase separation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If high percentages of suspending agents are used to increase viscosity and prevent phase separation, then stability is improved, but the composition becomes too thick for roll-on or gel deodorant applications
Solution Approach 1:
The patent changes the chemical parameters of the emulsifier system by using specific blends of stearyl ethers (such as steareth-2 and steareth-21) in optimized ratios, and adjusts the viscosity within a specific range (100-6000 mPas) to achieve both stability and applicability without excessive thickening
Solution Approach 2:
The patent employs composite emulsifier systems combining multiple stearyl ether compounds (e.g., steareth-2, steareth-21, steareth-50) working synergistically, along with composite odor-reducing systems combining aluminum compounds with non-aluminum compounds like zinc ricinoleate and zinc stearate
2Ease of operation
If specific components are used to provide desired viscosity and esthetic properties, then smoothness and non-tackiness are improved, but phase separation occurs between applications
Solution Approach 1:
The patent optimizes the viscosity parameter to a specific range (100-6000 mPas) and adjusts emulsifier concentrations (steareth-2 at 0.5-5%, steareth-21 at 0.5-5%) to balance esthetic properties with stability, preventing phase separation while maintaining smoothness and non-tackiness
Solution Approach 2:
The patent uses composite emulsifier blends combining different stearyl ether compounds with complementary properties, where steareth-2 provides emulsification and steareth-21 provides stability, creating a synergistic system that maintains both esthetics and phase separation resistance
3Object-generated harmful factors
If aluminum compounds are used as odor-reducing agents, then odor control is improved, but the composition becomes more prone to phase separation
Solution Approach 1:
The patent employs composite odor-reducing systems that combine aluminum compounds (providing odor control) with non-aluminum compounds like zinc ricinoleate and zinc stearate (improving stability), creating a synergistic blend where zinc soaps act as natural emulsifiers and stabilizers
Solution Approach 2:
The patent introduces zinc ricinoleate and zinc stearate as intermediary compounds that mediate between the aluminum odor-control agents and the emulsifier system, with zinc soaps providing emulsification and stabilization functions that reduce phase separation while maintaining odor control efficacy
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 achieves superior phase-separation stability and maintains aesthetic properties comparable to silicon-containing deodorant compositions, reducing the need for pre-use shaking and ensuring stability over time.
Implementation Method 1
an emulsifier comprising a blend of two or more different stearyl ether
Implementation Method 2
an emulsifier comprising a blend of two or more different stearyl ether
Implementation Method 3
calcium silicate
Implementation Method 4
an emollient comprising a non-volatile ether compound
Data Source
AI summary
Described herein are deodorant compositions comprising an odor-reducing agent comprising a non-aluminum compound, an emollient comprising a non-volatile ether compound, calcium silicate, and an emulsifier. Methods of making and using these compositions are also described herein.