DIPHOSPHITE DERIVATIVES 3-PHENYLBENZOFURAN-2-ONE AS STABILIZERS Russian patent published in 2019 - IPC C08K5/527 C07F9/6574 C08L23/02 C08L101/00 

FIELD: chemistry.

SUBSTANCE: invention relates to a composition for making articles containing an organic material subjected to oxidative, thermal or light-induced degradation, which is a polyolefin and a compound of formula I-P, I-O or I-M

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as well as phenolic antioxidant and phosphite or phosphonite different from compounds of formula I-P, I-O or I-M. Additional versions of the invention are a compound of formula I-P, I-O or I-M, a method of protecting an organic material which is a polyolefin, a compound, use of the compound for destruction of organic material, a filler composition containing a compound, a method of producing compounds and intermediate compounds for producing compounds I-P, I-O or I-M.

EFFECT: providing satisfactory characteristics during processing in a melt of a ternary mixture containing a compound of formula I-P, I-O or I-M, providing satisfactory or better characteristics at lower concentrations of the triple mixture compared to conventional binary mixtures, at higher concentrations; absence of negative effect on long-term heat resistance, provided by phenolic antioxidant, observed when measured by thermal aging at 135 °C or 150 °C.

17 cl, 5 tbl, 11 ex