发明授权
US06803049B2 Emulsifier-free finely disperse systems of the oil-in-water and water-in-oil type
失效
不含乳化剂的水包油和油包水型精细分散系统
- 专利标题: Emulsifier-free finely disperse systems of the oil-in-water and water-in-oil type
- 专利标题(中): 不含乳化剂的水包油和油包水型精细分散系统
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申请号: US10081618申请日: 2002-02-21
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公开(公告)号: US06803049B2公开(公告)日: 2004-10-12
- 发明人: Heinrich Gers-Barlag , Anja Müller
- 申请人: Heinrich Gers-Barlag , Anja Müller
- 优先权: DE19842767 19980918
- 主分类号: A61K600
- IPC分类号: A61K600
摘要:
Pickering emulsions, which are finely disperse systems of the water-in-oil or oil-in-water type, comprising (1) an oil phase, (2) a water phase, (3) at least one type of microfine particles which a) have an average particle size of less than 200 nm, which b) display both hydrophilic and lipophilic properties, i.e. which have amphiphilic character, and are dispersible both in water and in oil and which c) have optionally been coated on the surface, (4) at least one polymeric moisturizer and (5) at most 0.5% by weight of one or more emulsifiers.
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