POLYETHYLENE COMPOSITION WITH HIGH MECHANICAL PROPERTIES Russian patent published in 2016 - IPC C08L23/08 C08J5/18 B29C47/00 B29C49/00 

FIELD: chemistry.

SUBSTANCE: invention relates to a polyethylene composition for making moulded articles, containing linear low-density polyethylene (LLDPE), having relatively high values of ratio of MIF/MIE, and low density polyethylene (LDPE), having relatively high molecular weight, as well as moulded articles from said composition. Composition contains A) from 90 up to 99.7 wt% LLDPE with density of 0.91 to 0.94 g/cm³, which is determined in accordance with ISO 1,183 at 23 °C, and ratio MIF/MIE, equal to or greater than 20, where MIF is a melt flow index at 190 °C with load 21.60 kg, and MIE is a melt flow index at 190 °C with load 2.16 kg, both determined in accordance with ISO 1133, and B) from 0.3 to 10 wt% of LDPE with index MIE from 0.1 to 0.6 g/10 min.

EFFECT: technical result consists in making articles from said composition, which have excellent balance of mechanical properties and optical properties.

9 cl, 3 tbl, 3 ex