发明名称 |
Hydrogel of Chitosan Carboxyalkylamide, Preparation Thereof and Cosmetic and Dermatological Use Thereof |
摘要 |
The present invention relates to a hydrogel of chitosan carboxyalkylamide, characterised in that it has a pH value close to that of the skin, comprised between 6.5 and 7.2, and in that the chitosan carboxy-alkylamide is constituted by 40 to 90 mole % of D-glucosamine N-carboxyalkylamide units of formula (I) where n represents an integer ranging from 1 to 8, from 60 to 10 mole % of protonated D-glucosamine units, and from 5 to 15 mole % of N-acetyl-D-glucosamine units. The present invention also relates to a dehydration product of such a gel and the cosmetic and/or dermatological utilisation of the gel and the dehydration product.
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申请公布号 |
US2010183724(A1) |
申请公布日期 |
2010.07.22 |
申请号 |
US20080668047 |
申请日期 |
2008.07.01 |
申请人 |
BIOPHARMEX HOLDING LIMITED |
发明人 |
LAUGIER ELISABETH;GOUCHET FRANCK;PERRAUD JEAN-PIERRE |
分类号 |
A61K9/14;A61K8/73;A61K8/97;A61K31/722;A61K36/28;A61P17/02;A61Q19/00 |
主分类号 |
A61K9/14 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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