COMPOSITIONS FOR PRODUCING ORGANOSILICON MATERIALS WITH SELF-HEALING EFFECT Russian patent published in 2022 - IPC C08L83/04 C07F7/02 C07F15/02 

FIELD: chemistry.

SUBSTANCE: invention relates to heat-resistant siloxane compositions with a self-healing effect and can be used as sealing and barrier coatings. Disclosed are compositions for producing materials with a self-healing effect, containing polydiorganosiloxane selected from polydimethylsiloxane and polymethylphenylsiloxane, nanogel of general formula [R¹(R²)₂SiO]₁[SiO₂]_n, where n is equal to 1 or 1.5, R¹=R²=CH₃- or R¹=C₆H₅-, R²=CH₃-, and a functional metal siloxane, characterized by that the metal siloxane used is a phenyl-containing metal siloxane of general formula (C₂H₅O)_p-M-[OSi(C₆H₅)(OC₂H₅)₂]_m, where M is Zr or Fe (III), p + m corresponds to metal valence, provided that m≠0, wherein the weight ratio of polydiorganosiloxane and functional metallosiloxane ranges from 10:1 to 10:10, and the weight ratio of polydiorganosiloxane and nanogel ranges from 10:0.1 to 10:3, respectively.

EFFECT: disclosed compositions enable to obtain heat-resistant self-healing sealing coatings and barrier coatings, including in the food industry.

1 cl, 1 dwg, 1 tbl, 6 ex