Last Updated: May 26, 2026

Details for Patent: 4,585,597


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Summary for Patent: 4,585,597
Title:3-benzylidene-camphors, process for their preparation and their use in protection against UV rays
Abstract:The invention relates to new 3-benzylidene-camphor derivatives of the formula: (I) in which R1 denotes H or SO3(-)M(+), with M=H, an alkali metal or N(+)(R3)4, with R3=H or C1-C4 alkyl or hydroxyalkyl; R2 denotes C1-C4 alkyl or C1-C4 alkoxy and n=0-4; and Z denotes in which R4 has the same meaning as R1 and can be identical or different, or alternatively in which R5 denotes H, optionally substituted aryl, C1-C4 alkyl, -CN, -COOR7 or and R6 denotes -COOR8 or in which R7 and R8, which are identical or different, denote alkyl, alkenyl, cycloalkyl or aralkyl and R9 and R10, which are identical or different, denote H, alkyl, alkenyl or cycloalkyl; if R5=H, alkyl or aryl, R6 can represent -COO(-)M(+); the methylidene-camphor radical, on the one hand, and the radical Z, on the other hand, are in the meta or para position. These derivatives act as sun filters.
Inventor(s):Gerard Lang, Madeleine Leduc, Alain Malaval
Assignee: LOreal SA
Application Number:US06/505,090
Patent Claim Types:
see list of patent claims
Use; Composition; Formulation; Compound;

Drugs Protected by US Patent 4,585,597

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
>Applicant >Tradename >Generic Name >Dosage >NDA >Approval Date >TE >Type >RLD >RS >Patent No. >Patent Expiration >Product >Substance >Delist Req. >Patented / Exclusive Use >Submissiondate

Foreign Priority and PCT Information for Patent: 4,585,597

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
France82 10425Jun 15, 1982

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