Cosmetics Comprising Cosmetic Composition-Impregnated Urethane Foam
Patent No. EP2574166 (titled "Cosmetics Comprising Cosmetic Composition-Impregnated Urethane Foam") was filed by Amorepacific on Mar 23, 2012. The application was issued on Oct 18, 2017.
Patent Summary
A polyether-based urethane foam impregnated with a cosmetic composition, specifically liquid emulsion types including water-in-oil (W/O) or oil-in-water (O/W) emulsions, is disclosed. The foam features a reticulated open-cell structure with a density of 16.02 to 48.06 kg/m³ (1 to 3 pcf). To ensure optimal elasticity, flowability control, durability, and touch feel, the foam possesses a pore density of 2755.9 to 4724.4 pores per meter (70 to 120 ppi, preferably 75 to 95 ppi). Unlike polyester-based foams, which suffer from poor air permeability and wet-environment degradation, this wet polyether-based urethane foam provides a continuous microporous structure with hydrophilic surface properties, high water/oil absorbability, and high post-impregnation stability, making it suitable for portable cosmetic applications, such as UV protecting compositions.
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Date
Description
EP2574166
- Application Number
- EP12759918A
- Filing Date
- Mar 23, 2012
- Status
- Revoked
- Mar 27, 2020
- Publication Date
- Oct 18, 2017
- External Links
- Slate, Register , Google Patents