Temperature-Responsive Polymer Cosmetic for High-Temperature Moisture Supply
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Solution Overview
Problem
There is a lack of cosmetics suitable for high-temperature low-humidity environments, which poses a challenge in protecting skin from harsh environmental conditions.
Innovation Solution
A cosmetic comprising a functional polymer where a temperature-responsive polymer and a hydrophilic polymer form an interpenetrating polymer network structure or a semi-interpenetrating polymer network structure, allowing the cosmetic to absorb and release moisture based on temperature changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional cosmetics are used in high-temperature low-humidity environments, then the cosmetic formulation remains stable, but the cosmetic cannot effectively supply moisture to the skin
Solution Approach 1:
The patent employs a temperature-responsive polymer that dynamically changes its water affinity based on temperature. At low temperatures, the polymer absorbs and stores water; at high temperatures, it releases water to the skin. This dynamic response allows the cosmetic to adapt to environmental temperature changes and effectively supply moisture in high-temperature low-humidity conditions.
Solution Approach 2:
The invention utilizes changes in the physical-chemical parameters of the temperature-responsive polymer with temperature. The polymer's water content ratio changes as a function of temperature, enabling it to absorb water at lower temperatures and release water at higher temperatures. This parameter change mechanism provides the cosmetic with environmental adaptability and reliable moisture supply capability.
2Adaptability or versatility
If a temperature-responsive polymer is used to enable moisture release at high temperatures, then the cosmetic becomes adaptable to high-temperature environments, but the polymer structure becomes more complex
Solution Approach 1:
The patent creates a composite functional polymer system by combining a temperature-responsive polymer with a hydrophilic polymer. The temperature-responsive polymer provides environmental adaptability through its temperature-dependent water affinity changes, while the hydrophilic polymer enhances water absorption and retention capabilities. This composite structure achieves high environmental adaptability while distributing the functional complexity across two polymer components.
3Reliability
If the functional polymer absorbs water at low temperatures for later release, then moisture supply reliability improves, but the cosmetic formulation complexity increases
Solution Approach 1:
The patent implements preliminary water absorption by the functional polymer at low temperatures (such as during storage or application in air-conditioned spaces). The polymer absorbs and stores water in advance, then releases this stored water when the temperature rises and the skin needs moisture. This preliminary action mechanism ensures reliable moisture supply timing without requiring complex active delivery systems.
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 cosmetic effectively supplies moisture to the skin in high-temperature low-humidity environments while maintaining skin hydration, even in air-conditioned spaces where the cosmetic absorbs water for later release.
Implementation Method 1
a temperature-responsive polymer and a hydrophilic polymer form an interpenetrating polymer network structure or a semi-interpenetrating polymer network structure... the functional polymer has a first water content ratio at a temperature higher than a predetermined temperature that is smaller than a second water content ratio at a temperature lower than the predetermined temperature, and the functional polymer thereby releases, in an atmosphere having a temperature higher than the predetermined temperature, moisture absorbed in an atmosphere having a temperature lower than the predetermined temperature
Data Source
AI summary
Provided is a cosmetic suitable for high-temperature low-humidity environments.A cosmetic containing a functional polymer in which a temperature-responsive polymer and a hydrophilic polymer form an interpenetrating polymer network structure or a semi-interpenetrating polymer network structure.