Oil-in-water type emulsion cosmetic
JPWO2025105449A1Undetermined Publication Date: 2025-05-22
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Patent Information
- Application Number
- JP2025557912
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Priority Date
- 2023-11-15
- Filing Date
- 2024-11-14
- Publication Date
- 2025-05-22
AI Technical Summary
Technical Problem
Existing oil-in-water emulsion cosmetics face challenges in stabilizing solid oils, leading to issues like precipitation, creaming, stickiness, and poor feel when used.
Method used
The use of an oil solution that is solid at 25°C with an IOB value of 0.2 to 0.8, combined with a liquid oil agent having a Hansen solubility parameter distance of 7.0 or less, along with phospholipids or lysophospholipids and ethanol or polyhydric alcohols, to create a stable and non-sticky emulsion cosmetic.
Benefits of technology
This approach results in a cosmetic that is stable, non-sticky, firm, and penetrates well, maintaining stability over time and providing excellent usability.
✦ Generated by Eureka AI based on patent content.
Abstract
Provided is an oil-in-water type emulsion cosmetic wherein an oil agent that is solid at 25°C and has an IOB value of 0.2-0.8 can be stably mixed with the liquid oil-in-water type emulsion cosmetic, and which has excellent use feelings such as non-stickiness, a resilient feeling, and a penetrating feeling. This oil-in-water type emulsion cosmetic comprises (A) an oil agent that is solid at 25°C and has an IOB value of 0.2-0.8, (B) an oil agent that is liquid at 25°C and has an HSP distance Ra from the component (A) of 7.0 or less, (C) one or more lipids selected from the group consisting of phospholipids and lysophospholipids, and (D) one or more alcohols selected from among ethanol and polyhydric alcohols having IOB values of 1.5-5. Emulsified droplets of the oil-in-water type emulsion cosmetic have an average droplet diameter of 400 nm or less.
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