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:
Dec. 01, 1987
Filed:
Mar. 12, 1985
Koichi Nakamura, Ichikaimachi, JP;
Michihiro Hattori, Utsunomiya, JP;
Tadashi Tamura, Ichikaimachi, JP;
Toru Tejima, Kokubunjimachi, JP;
Naotake Takaishi, Utsunomiya, JP;
Genji Imokawa, Utsunomiya, JP;
Hajime Hotta, Funabashi, JP;
Kao Corporation, Tokyo, JP;
Abstract
A composition for application to the skin to protect the skin from the long wavelength ultraviolet ray comprises a dibenzoylmethane derivative of the following general formula ##STR1## in which X represents a hydrogen atom, a monovalent metal cation, an organic cation, a linear or branched alkyl group having from 1 to 24 carbon atoms, or a polyoxyalkylene oxide having 2 or 3 carbon atoms, Y and Z each independently represent a hydroxyl group, a linear or branched alkyl group having from 1 to 24 carbon atoms, or an alkoxy group having from 1 to 24 carbon atoms, or a polyoxyalkylene oxide group having from 2 to 3 carbon atoms, and m and n are independently an integer of from 0 to 3. The composition is adjustable so as to have an optimum HLB balance and has good compatibility with various cosmetic bases. Further, it does not irritate the skin, is difficult to be percutaneously absorbed and shows continued skin-protecting effects.