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:
Dec. 08, 2015
Filed:
Oct. 25, 2010
Herve Richard, Gagny, FR;
Patricio Guerreiro, Avilly-Saint-Leonard, FR;
Jianping Guo, Jiangxi, CN;
Wensheng Tang, Shanghai, CN;
Herve Richard, Gagny, FR;
Patricio Guerreiro, Avilly-Saint-Leonard, FR;
Jianping Guo, Jiangxi, CN;
Wensheng Tang, Shanghai, CN;
L'OREAL, Paris, FR;
Abstract
A process for preparing a siloxane compound comprising a 2-hydroxyphenyl benzotriazole function which comprises at least one step in which a reaction for hydrosilylation of a compound 2-hydroxyphenyl benzotriazole comprising a substituent having a terminal double bond with a siloxane compound comprising an SiH function is carried out in the presence of a catalyst and of at least one volatile organic solvent corresponding to one of formula (VII) or (VIII). in which Rand R, which may be identical or different, represent a linear or branched C-Calkyl radical, with the proviso that the sum of the carbons of Rand Ris less than or equal to 6; y is and integer between 1 and 3; Rwhich may be identical or different, are linear or branched C-Calkyl radicals, with the proviso that the sum of the carbons of Ris less than or equal to 6 is disclosed.