发明名称 |
Preparation of retinol-gamma cyclodextrin complex useful in skin care cosmetic or dermatological compositions comprises using retinol as solution in polysorbate, giving quantitative conversion to stable complex |
摘要 |
The preparation of stable retinol- psi -cyclodextrin complex by complexation of retinol with psi -cyclodextrin in aqueous solution is carried out using the retinol to be complexed in the form of a solution in polysorbate. (N.B. The term 'retinol' includes retinol derivatives (e.g. retinyl esters or vitamin A acid) as well as retinol itself).
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申请公布号 |
DE19847633(C1) |
申请公布日期 |
2000.03.02 |
申请号 |
DE19981047633 |
申请日期 |
1998.10.15 |
申请人 |
WACKER-CHEMIE GMBH |
发明人 |
REGIERT, MARLIES;MOLDENHAUER, JENS-PETER |
分类号 |
A61K31/59;A61K31/715;A61K47/48;C07C403/08;C08B37/00;C08B37/16;(IPC1-7):C07C403/08;A61K7/00 |
主分类号 |
A61K31/59 |
代理机构 |
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主权项 |
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