POLYETHYLENE COMPOSITION FOR INCREASING ADHESION TO POLYURETHANE RESINS Russian patent published in 2024 - IPC C08L23/08 C08L43/04 C08L33/10 H01B13/06 H01B3/44 H01B9/00 

FIELD: chemistry.

SUBSTANCE: present invention relates to polyethylene composition intended for use as layers in power cables, containing: (A) ethylene copolymer containing monomer units with hydrolysable silane groups, and (B) one or more ethylene copolymers containing monomer units with hydroxyl groups and (meth)acrylate groups; where component (B) is present in the composition in such an amount that monomer units having both hydroxyl groups and (meth)acrylate groups are present in the composition in an amount of more than 4.0 mol.% to 7 mol.%; and where components (A) and (B) can be present in the composition in the form of separate ethylene copolymers or in the form of one ethylene copolymer containing the corresponding groups simultaneously. Also described is a cable containing layer (1), which contains said polyethylene composition. Described is the use of said polyethylene composition to increase adhesion between a cable layer containing an ethylene copolymer and a polyurethane resin.

EFFECT: high adhesion between cable soya containing ethylene copolymer and polyurethane resin.

7 cl, 3 tbl, 8 ex