Composition, useful as a dispersing agent for inorganic filter in the composition and to improve the sun protection factor, comprises at least one 4-carboxy-2-pyrrolidinone derivative, and at least one inorganic UV filter in a medium

摘要

Composition (A) comprises: (a) at least one 4-carboxy-2-pyrrolidinone derivative (I) and its salts, optical isomers, stereoisomers, enantiomers, diastereoisomers and geometric isomers; and (b) at least one inorganic UV filter in a medium. Composition (A) comprises: (a) at least one 4-carboxy-2-pyrrolidinone derivative of formula (I) and its salts, optical isomers, stereoisomers, enantiomers, diastereoisomers and geometric isomers; and (b) at least one inorganic UV filter in a medium. R1 : H, linear 1-20C alkyl or branched 3-20C alkyl; R2 : linear 1-20C or branched 3-20C alkyl containing 5-6C ring, branched 3-20C alkyl, 5-6C cycloalkyl optionally substituted with one or two methyl, phenyl, benzyl or phenethyl groups; R3, R4 : H (preferred) or linear 1-12C or branched 3-12C alkyl, provided that when R1 is H, the compounds may be in their free acid form or salts. [Image].