POLYMER COMPOSITIONS CONTAINING MIXTURES OF POLYOLEFINS Russian patent published in 2024 - IPC C08L23/04 C08L23/06 C08L23/08 C08L23/14 C08L51/00 C08L51/06 

FIELD: cable industry.

SUBSTANCE: present invention relates to a polyolefin composition for use in cables, a method for cross-linking a polyolefin composition, use of the polyolefin composition to obtain an insulating layer or a semiconductor layer of a cable or a power cable, as well as to a cable or power cable. Polyolefin composition contains (i) polyolefin (A), which contains epoxy groups, and (ii) polyolefin (B), which contains carboxylic acid groups and/or precursors thereof, provided that at least one of (A) and (B) is low-density polyethylene (LDPE), and the other is polypropylene having a melting point of 135 to 170 °C.

EFFECT: obtained polyolefin composition can be cross-linked to the required degree of cross-linking, which is suitable for use in the cable industry, absolutely without using peroxides.

28 cl, 2 dwg, 1 tbl, 2 ex