FIELD: chemistry.
SUBSTANCE: invention relates to chemistry of high-molecular compounds, specifically to polyolefins and a method for production thereof. Disclosed polyolefin includes a core portion and a shell portion, wherein the core portion has density of 0.857 g/cm3 to 0.910 g/cm3, shell part has density from 0.890 g/cm3 to 0.940 g/cm3, and density of shell part is higher than density of core part.
EFFECT: disclosed approach enables to prevent the problem of deterioration of stability of the production process due to stickiness, which hinders the continuity of operation of the reactor when the polymer surface has low density.
20 cl, 3 dwg, 2 tbl, 6 ex
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