ADDITIVE MIXTURE Russian patent published in 2021 - IPC C08K5/3492 

FIELD: polymer stabilizers.

SUBSTANCE: invention relates to a mixture of additives for stabilizing a thermoplastic polymer in relation to light, heat or oxidation

in which R₁ and R₂ independently of each other represent hydrogen, C₁-C₂₂ alkyl, -O, -OH, -CH₂CN, C₁-C₁₈ alkoxy, C₂-C₁₈ alkoxy, substituted by -OH, C₅-C₁₂ cycloalkoxy, C₃-C₆alkenyl, C₃-C₆ alkenyloxy, C₇-C₉ phenylalkyl unsubstituted or substituted at phenyl by 1, 2 or 3 C₁-C₄ alkyls, or C₁-C₈ acyl, and R₃ and R₄ independently of each other are C₁-C₂₂ alkyl or a group of Formula (Ia)

in which R₀ has one of the values R₁ and R₂, and (B) at least one scratch resistant additive, the scratch resistant additive being erucamide, oleamide or stearamide. EFFECT: invention provides long-term thermal stability, better scratch resistance and an increase in gloss value when using the claimed mixture of additives.

15 cl, 5 tbl, 3 ex