发明名称 |
Thermally stable ferulic acid derivatives |
摘要 |
A ferulic acid derivative represented by the general formula (1); a process for preparing a ferulic acid derivative represented by the general formula (1), comprising reacting ferulic acid or an ester thereof represented by the general formula (2) with a dihalomethane represented by the general formula CH<SUB>2</SUB>X<SUB>2</SUB>, wherein X is a halogen atom; and an ultraviolet light-absorbent composition comprising the ferulic acid derivative. Since the ultraviolet light absorbent composition is not only excellent in the ultraviolet light absorption but also very stable against heat, the ultraviolet light absorbent composition can be suitably used as cosmetics which especially require long-term stability.
|
申请公布号 |
US6890520(B2) |
申请公布日期 |
2005.05.10 |
申请号 |
US20030358183 |
申请日期 |
2003.02.05 |
申请人 |
TSUNO FOOD INDUSTRIAL CO., LTD. |
发明人 |
TANIGUCHI HISAJI;NOMURA EISAKU;HOSODA ASAO;TSUNO TAKUO;MARUTA YUKO |
分类号 |
A61K8/39;A61Q1/02;A61Q5/06;A61Q13/00;A61Q17/04;A61Q19/00;A61Q19/08;C07C69/734;(IPC1-7):A61K7/44;A61K7/00;A61K31/05;C07C69/76;A01N25/00 |
主分类号 |
A61K8/39 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|