Generated: April 23, 2017
|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: ##STR1## in which R.sub.1 denotes H or SO.sub.3.sup..crclbar. M.sup..sym., with M=H, an alkali metal or N.sup..sym. (R.sub.3).sub.4, with R.sub.3 =H or C.sub.1 -C.sub.4 alkyl or hydroxyalkyl; R.sub.2 denotes C.sub.1 -C.sub.4 alkyl or C.sub.1 -C.sub.4 alkoxy and n=0-4; and Z denotes ##STR2## in which R.sub.4 has the same meaning as R.sub.1 and can be identical or different, or alternatively ##STR3## in which R.sub.5 denotes H, optionally substituted aryl, C.sub.1 -C.sub.4 alkyl, --CN, --COOR7 or ##STR4## and R.sub.6 denotes --COOR.sub.8 or ##STR5## in which R.sub.7 and R.sub.8, which are identical or different, denote alkyl, alkenyl, cycloalkyl or aralkyl and R.sub.9 and R.sub.10, which are identical or different, denote H, alkyl, alkenyl or cycloalkyl; if R.sub.5 =H, alkyl or aryl, R.sub.6 can represent --COO.sup..crclbar. M.sup..sym. ; 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):||Lang; Gerard (Saint Gratien, FR), Leduc; Madeleine (Paris, FR), Malaval; Alain (Aulnay-sous-Bois, FR)|
|Assignee:||L'Oreal (Paris, FR)|
Patent Claim Types:|
see list of patent claims
|Compound; Formulation; Composition; Use;|
|Foriegn Application Priority Data|
|Foreign Country||Foreign Patent Number||Foreign Patent Date|
|France||82 10425||Jun 15, 1982|
|Country||Document Number||Estimated Expiration||Supplementary Protection Certificate||SPC Country||SPC Expiration|
| This preview shows a limited data set|
Subscribe for full access, or try a Trial
The estimated expiration dates shown above are derived by simply adding 20 years to the priority date.
Due to the complexity of determining patent expirations even in a single country, compounded by the diversity of global patent laws, it is advisable to have patent counsel verify freedom to operate.
Export unavailable in trial.
Subscribe for complete access.
Drugs may be covered by multiple patents or regulatory protections. All trademarks and applicant names are the property of their respective owners or licensors. Although great care is taken in the proper and correct provision of this service, thinkBiotech LLC does not accept any responsibility for possible consequences of errors or omissions in the provided data. The data presented herein is for information purposes only. There is no warranty that the data contained herein is error free. thinkBiotech performs no independent verifification of facts as provided by public sources nor are attempts made to provide legal or investing advice. Any reliance on data provided herein is done solely at the discretion of the user. Users of this service are advised to seek professional advice and independent confirmation before considering acting on any of the provided information. thinkBiotech LLC reserves the right to amend, extend or withdraw any part or all of the offered service without notice.