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. 06, 1993
Filed:
Aug. 13, 1992
Applicant:
Inventors:
Assignee:
Shiseido Co., Ltd., , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07F / ; C07F / ;
U.S. Cl.
CPC ...
556436 ; 424 59 ;
Abstract
Alkyl-aryl 1,3-propanedione silicone derivative characterized in that said derivative is siloxane having at least one unit expressed by the general formula 1 as shown below and other unit which can exist in said siloxane is expressed by a general formula of O.sub.4-r/2 SiR.sup.5.sub.r, and an external preparation for skin with said derivative compounded therein. ##STR1## Herein; R.sup.1 : A hydroxyl group, an alkyl group having 1 to 8 carbon atoms, or an alkoxy group having 1 to 8 carbon atoms