FIELD: organic chemistry, polymers. SUBSTANCE: invention relates to stabilizing agents of organic materials against an oxidative, thermic or illuminance destruction. Invention proposes the use of derivatives of bisphenol esters as stabilizing agents of the general formula: (I) 
where R1 and R2 are, for example, C1-C5-alkyl, C5-C12-cycloalkyl, phenyl, alkylphenyl -CH2-S-X; R3-R8 - hydrogen atom, alkyl or phenyl; n = 1 or 2; if n = 1 then A is, for example, alkoxy-radical, -O-Z1, -N-(Z2)(Z3),NH(OZ4),-S(O)mZ7 or -O-N=C(Z5)(Z6); if n = 2 then A is, for example, diamine involving C2-C8-alkylene, C2-C12-alkylene broken by oxygen atom in the chain or C7-C9-phenyl-alkylene being Z1 means, for example, C1-C8-alkyl, C3-C10-alkyl broken by oxygen atom in the chain, C5-C8-cycloalkyl, tetra-hydrofuryl and others; Z2 means C1-C18-alkyl, C2-C4-alkyl substituted with OH, C7-C9-phenylalkyl; Z3 means hydrogen atom, C1-C18-alkyl, C2-C4-alkyl substituted with OH, C7-C9-phenylalkyl; Z2 and Z3 taken in common mean C3-C6-oxaalkylene, C3-C6-alkylene broken by oxygen atom in the chain. Indicated derivatives of bisphenol esters taken at amount 0.01-30% of polymer mass provide the stabilization of the polymeric composition. Polymers are, for example, polyolefin, polybutadiene rubber, block-copolymers of styrene and butadiene or acrylonitrile, styrene and butadiene. EFFECT: enhanced effectiveness of stabilizing agents effect. 7 cl, 4 tbl, 23 ex
