Solubilizing agents for UV filters in cosmetic formulations

US10219990B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Laurence Pottie
• Ansgar Behler · Bottrop, DE
• Stanislaw KRUS · Wyhlen, DE
• Jochen Giesinger · Weil am Rhein, DE

Key dates

• Filing date: Dec 9, 2015
• Grant date: Mar 5, 2019
• Expiry date: Dec 9, 2035

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61Q17/04
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

The present invention relates to the use of the compounds (A) corresponding to formula wherein R1 is hydrogen; a linear or branched C1-C30 aliphatic hydrocarbon residue comprising 0, 1, 2 or 3 double bonds; R2 independently from each other are hydrogen; methyl; ethyl; —OH; —COOR4; —CH2—OH; and —CH2—COOR4; R4 is hydrogen; or a linear or branched C1-C30 aliphatic hydrocarbon residue comprising 0, 1, 2 or 3 double bonds; R3 independently from each other are hydrogen; methyl; ethyl; —OH; —COOR5; —CH2—OH; and —CH2—COOR5; R5 is hydrogen; or a linear or branched C1-C30 aliphatic hydrocarbon residue comprising 0, 1, 2 or 3 double bonds; n is at least 0.1 on average; m1 and m2 independently from each other are 0; or 1; with the proviso, that at least one of the radicals R1, R4 or R5 represent a linear or branched C1-C30 aliphatic hydrocarbon residue comprising 0, 1, 2 or 3 double bonds, as solubilizing agent for organic UV filters (B) selected from (B1) benzophenone derivatives; (B2) hydroxyphenyl triazine derivatives; and (B3) trianilino-s-triazine derivatives.