发明申请
- 专利标题: Citric acid ester
- 专利标题(中): 柠檬酸酯
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申请号: US10554968申请日: 2004-04-21
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公开(公告)号: US20070098666A1公开(公告)日: 2007-05-03
- 发明人: Ansgar Behler , Werner Seipel , Norbert Boyxen , Daniela Prinz
- 申请人: Ansgar Behler , Werner Seipel , Norbert Boyxen , Daniela Prinz
- 申请人地址: DE DUESSELDORF 40589
- 专利权人: COGNIS IP MANAGEMENT GMBH
- 当前专利权人: COGNIS IP MANAGEMENT GMBH
- 当前专利权人地址: DE DUESSELDORF 40589
- 优先权: DE10319401.0 20030430
- 国际申请: PCT/EP04/04209 WO 20040421
- 主分类号: A61K8/37
- IPC分类号: A61K8/37
摘要:
A mixture of citric acid esters of ethoxylated alcohols wherein the residue of the alcohol contains from 12 to 18 carbon atoms ethoxylated with from 5 to 9 ethoxy groups and a ratio by weight of monoester to diester in the mixture of citric acid esters in a range of 3:1 to 10:1. The mixture contains less than 10% by weight of unesterified citric acid. The citric acid ester mixture provides improved foaming ability and reduced lachrimatory properties when compared to citric acid esters containing a different ratio of monoester to diester and containing longer or shorter chain length alcohol residues.
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