NON-MIGRATORY POLYMER UV-RADIATION ABSORBENT WITH GOOD COMPATIBILITY Russian patent published in 2009 - IPC C08G63/685 C07D251/34 C08K5/3492 C08K5/10 C09K15/30 

FIELD: chemistry.

SUBSTANCE: invention relates to hydroxyphenyltriazine UV-radiation absorbents for protecting transparent plastic containers or films and their contents. Description is given of oligoester or polyester with general formula -[A-O-D-O]_x- as an additive to thermoplastic polymer material, where x - ranges from 1 to 50; A - is a hydroxytriphenyltriazine residue with formula (II) or assumes one of the values, indicated for T; D - C₄-C₁₂alkylene, which can be substituted with OH, and/or include O; L - C₁-C₁₈alkylene; C₅-C₁₂cycloalkylene; C₃-C₁₈ alkenylene, which can be substituted with phenyl, C₇-C₁₁alkylphenyl, C₅-C₁₂cycloalkyl, OH, halogen, C₁-C₁₈alkoxy group, C₅-C₁₂cyclolkoxy group, C₃-C₁₈alkenyloxy group, COOH; R₁ - H, OR₇ or OH under the condition that, at least one of R₁ or R₁₃ represents OH; R₇ - hydrogen, C₁-C₁₂alkyl or L-CO-O-R₉, where R₉ - H, C₁-C₁₈alkyl, C₂-C₁₂hydroxyalkyl; R₁₀ - hydrogen, C₁-C₄alkyl, Cl, phenyl or -OR₇; R₁₁ - hydrogen, methyl; R₁₃ - hydrogen, methyl, OH, OR₇; and T - is a bivalent acyl residue of aliphatic or cycloaliphatic C₁₃-C₆₀ dicarboxylic acid, and which includes at least one fragment with formula (II) and at least one fragment T.

EFFECT: effective protection of products in thin-walled containers or films.

13 cl, 8 ex