发明授权
US5093511A Silicone type cinnamic acid derivative, preparation method thereof,
UV-ray absorber, and external skin treatment agent
失效
硅酮型乳酸衍生物，其制备方法，紫外线吸收剂和外用皮肤治疗剂
- 专利标题： Silicone type cinnamic acid derivative, preparation method thereof, UV-ray absorber, and external skin treatment agent
- 专利标题（中）： 硅酮型乳酸衍生物，其制备方法，紫外线吸收剂和外用皮肤治疗剂
-
申请号： US376321申请日： 1989-07-06
-
公开(公告)号： US5093511A公开(公告)日： 1992-03-03
- 发明人: Masashi Yoshida , Tomiyuki Nanba , Keiichi Uehara
- 申请人： Masashi Yoshida , Tomiyuki Nanba , Keiichi Uehara
- 申请人地址： JPX Tokyo
- 专利权人： Shiseido Company, Ltd.
- 当前专利权人： Shiseido Company, Ltd.
- 当前专利权人地址： JPX Tokyo
- 优先权： JPX63-168838 19880708; JPX63-181500 19880722
- 主分类号： A61K8/58
- IPC分类号： A61K8/58 ; A61Q17/04 ; C07F7/08
摘要：
A silicone type cinnamic acid derivative which is a siloxane having at least one unit represented by the formula (I): ##STR1## and having the other units which may exist in the siloxane being represented by the formula:O.sub.(4-m)/2 SiR.sup.3.sub.mwherein R.sup.1 represents an alkyl group having 1 to 4 carbon atoms, a phenyl group, or a trimethylsiloxy group, R.sup.2 is a divalent hydrocarbon group having at least two carbon atoms, which may include a heteroatom O, X is an alkoxy group, n is an integer of 0 to 3, a is an integer of 2 or 3, R.sup.3 is an alkyl group having 1 to 4 carbon atoms, a phenyl group, or a trimethylsiloxy group, and m is an integer of 0 to 3.
公开/授权文献
信息查询
