Skin lightening agents, compositions and methods

Details Skin lightening agents, compositions and methods Skin lightening agents, compositions and methods

2005-02-08

2005-02-08

Dodson, Shelley A. (Department: 1616)

Drug, bio-affecting and body treating compositions

Topical sun or radiation screening, or tanning preparations

C424S060000, C424S400000, C424S401000

Reexamination Certificate

active

06852310

ABSTRACT:
Cosmetic methods of skin lightening using coumarin derivatives of formula I as skin lightening agents alone or in combination with other skin benefit agents and together with a cosmetic vehicle:Where each or both R1and/or R2represents hydrogen; linear or branched C1-C18alkyl, alkenyl, cycloalkyl, cycloalkenyl, hydroxyalkyl, hydroxyalkenyl, acyl, cycloacyl, or alkoxy groups;Each or both R3and/or R4, which may be connected by a single or double carbon-carbon bond (shown as a dotted line), represents hydrogen; linear or branched C1-C18alkyl, alkenyl, alkoxy, cycloalkyl, or cycloalkenyl group; andEach or both R5and/or R6represents a hydrogen atom, OH, C1-C4acyl group, C1-C4alkyl group, O—CO—R7, O—COO—R8group, mesyl group or tosyl group, where each or both R7and/or R8represents hydrogen; linear or branched C1-C18alkyl, alkenyl, hydroxyalkyl, hydroxyalkenyl, acyl, cycloacyl, or alkoxy groups.

REFERENCES:
patent: 5766575 (1998-06-01), Crotty et al.
patent: 6132740 (2000-10-01), Hu
patent: 6403065 (2002-06-01), Chevalier et al.
patent: 20110355 (2001-06-01), None
patent: 1 134 207 (2001-09-01), None
patent: 1 581 428 (1980-10-01), None
patent: 01-10925 (2000-11-01), None
patent: 00-327557 (2001-01-01), None
patent: 0224613 (2002-03-01), None
Lille, et al., Tr.Nauch-Issled. Inst. slantsev 1969, No. 18, pp. 127-134.
International Search Report No. PCT/EP 03/08845dated Jan. 2, 2004—3 pp.

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