Title: Process for making alkyl polyglycosides
Application Number: 98804307 Application Date: 1998.02.17
Publication Number: 1252804 Publication Date: 2000.05.10
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: A61K7/00;C07G17/00;C07H15/04;C11D1/66
Applicant(s) Name: Eastman Chemical Co. Address:
Inventor(s) Name: C. M. Buchanan;M. D. Wood
Attorney & Agent: guan lixin
Abstract:
    A novel process for making an alkylpolyglycoside comprises reacting a monosaccharide with an alcohol in the presence of a binary sulfate catalyst under heat. The particular binary sulfate catalyst is a mixture of H2SO4 and inorganic base at a normal ratio of about 0.7:1 to 1.1:1 of H2SO4 to inorganic base. Also the alkylpolyglycoside product from the reaction mixture can be isolated so that the alkylpolyglycoside process contains less than 5 weight percent free alcohol, and further separated into a white, free flowing powder of high DP (degree of polymerization) alkylpolyglycoside and a low DP alkylpolyglycoside paste.
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