Process for producing silylated pullulan and cosmetic preparation

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专利权人:

Masato Izume

发明人:

Masato Izume,Takahiro Fukuhara,Makoto Niwa,Takanori Sannan,Shinya Tsuchida,Nobuyuki Kobayashi

申请号：

US12531336

公开号：

US09125837B2

申请日:

2007.03.30

申请国别(地区):

US

年份:

2015

代理人:

摘要：

The present invention provides a process for producing silylated pullulan, which features reacting pullulan with N,O-bistrimethylsilylacetamide by using, as a reaction medium, only one of N-methyl-2-pyrrolidone and N-ethyl-2-pyrrolidone or a mixed solvent of both of them. Compared with conventional processes, the process according to the present invention can produce high-purity silylated pullulan simply, easily and efficiency.

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中国工程科技知识中心

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