Patent · US Expired

Topical process for lightening the skin or treating pigmental blemishes using a composition containing 4-thioresorcin derivatives

US5468472A · kind A · utility

7Cited by
1References
9Claims
0Family size

Assignee

Inventors

Key dates

Filing dateApr 28, 1994
Grant dateNov 21, 1995
Priority date—
Expiry dateApr 28, 2014

Classification

  • Technology area (CPC A)Human Necessities
  • CPC primaryA61P43/00
  • WIPO fieldPharmaceuticals
  • WIPO sectorChemistry

Abstract

A topical process for lightening the skin or treating pigmental blemishes consisting in applying to the part of the skin to be treated a composition containing, as active compounds, 4-thioresorcin derivatives corresponding to the following formula: ##STR1## wherein: R represents a C.sub.1 -C.sub.6 alkyl radical, a C.sub.1 -C.sub.6 haloalkyl radical, an aryl radical, an aralkyl radical which is unsubstituted or substituted by a lower alkyl or lower alkoxy radical or a halogen atom, the radical --C.sub.n H.sub.2n --COOR' where n is an integer between 1 and 5 and R' represents a C.sub.1 -C.sub.6 alkyl radical, a morpholinoalkyl or piperidinoalkyl radical in which the alkyl radical is C.sub.1 -C.sub.6, or the radical ##STR2##

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.