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发明授权
US4938950A Cosmetic composition based upon chitosan and ampholytic copolymerizates, as well as new chitosan/polyampholyte salts 失效
基于壳聚糖和两性共聚物的化妆品组合物，以及新的壳聚糖/聚阴离子盐

Cosmetic composition based upon chitosan and ampholytic copolymerizates, as well as new chitosan/polyampholyte salts
摘要：
A cosmetic composition is disclosed for the treatment of hair or skin, based upon 0.05 to 10% by weight of chitosan, and characterized by a content of 0.05 to 20% by weight of an ampholytic copolymerizate of formula (I) ##STR1## wherein m=0.5 to 0.9, n=0.1 to 0.5, m+n=1 and p being such that the ampholytic copolymerizate has a molecular weight of from 1,000 to 3,000,000.wherein m=0.1 to 0.9 and n=0.5 to 0.9. The composition provides clear, smooth films, which are neither sticky in moist climate, nor brittle in dry climate. Also disclosed are new chitosan/polyampholyte salts, obtained by reaction of chitosan with an ampholytic copolymerizate of formula (I).
摘要（中）：

公开了用于治疗毛发或皮肤的化妆品组合物，其基于0.05至10重量％的壳聚糖，并且其特征在于含量为0.05至20重量％的式（I）的两性共聚物（I） ），其中m = 0.5〜0.9，n = 0.1〜0.5，m + n = 1，p为两性共聚物的分子量为1,000〜3,000,000。 其中m = 0.1〜0.9，n = 0.5〜0.9。 该组合物提供清晰，光滑的膜，其在潮湿的气候中既不粘，也不干燥。 还公开了通过壳聚糖与式（I）的两性共聚物反应获得的新型壳聚糖/聚阴离子盐。

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