Hydrogel of chitosan carboxyalkylamide, process for its preparation, and anhydrous products, dermatological compositions and cosmetic compositions

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专利权人:

バイオファーメックス ホールディング リミテッド

发明人:

エリザベート ロジエ,フランク グッシェ,ジャン－ピエール ペロー,ジャン-ピエール ペロー

申请号：

JP2010515565

公开号：

JP5933178B2

申请日:

2008.07.01

申请国别(地区):

JP

年份:

2016

代理人:

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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中国工程科技知识中心

来源网址：

http://www.ckcest.cn/home/