FIELD: organic chemistry.
SUBSTANCE: invention relates to compositions comprising synthetic polymers that show stability against oxidative, thermal or visible light-induced destruction and comprising a stabilizing agent represented by compound of the formula (I): wherein each R1 and R2 means independently of one another hydrogen atom or (C1-C8)-alkyl; R3 and R4 mean C8-alkyl; R5 means (C1-C7)-alkyl. Also, invention relates to a method for stabilizing thermoplastic polymer against oxidative, thermal or visible light-induced destruction that involves addition of compound of the formula (I) or its treatment with this compound.
EFFECT: improved and valuable properties of compositions.
9 cl, 2 tbl, 2 ex
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Authors
Dates
2006-10-27—Published
2002-09-10—Filed