The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 21, 1998
Filed:
Apr. 15, 1996
Masanori Tanahashi, Tokyo, JP;
Takahide Minami, Tokyo, JP;
Yukihiro Ohashi, Ichikai-machi, JP;
Shinya Amano, Ichikai-machi, JP;
Kouichi Niinaka, Ichikai-machi, JP;
Kao Corporation, Tokyo, JP;
Abstract
Disclosed herein is an external skin-care composition comprising hydroxycarboxylic acids or derivatives thereof represented by the general formulae (1), (2), and (3), or the salts thereof: ##STR1## wherein R.sup.1, R.sup.2, and R.sup.3 are each independently a hydroxyl group, an amino group or an alkoxyl group which may be substituted by 1-3 hydroxyl groups, l is a number of 7-11, m is a number of 6-10, and n is a number of 5-9. This composition exhibits an excellent moisturizing effect, moisturizes the skin, has a great effect in preventing skin roughness and shows excellent effects in enhancing the clear skin tone of the skin and reducing skin dullness, and is hence particularly useful for cosmetic skin-care compositions.