ADHESIVE POLYETHYLENE COMPOSITION Russian patent published in 2024 - IPC C09J151/06 C09J123/08 C08L51/06 B32B27/32 B32B7/12 

FIELD: chemistry.

SUBSTANCE: present invention relates to an adhesive polyethylene composition for producing multilayer structures. Adhesive composition contains (A) from 60 to 90 wt.% of non-elastomeric polyethylene; (B) from 9.0 to 38 wt.% of elastomer based on ethylene, which is a copolymer of ethylene and alpha-olefin, containing from 4 to 12 carbon atoms and having density from 840 to 900 kg/m³. Component (A) or components (A) and (B) are grafted with an acid grafting agent (C) in amount of 0.01 to 3.0 wt.%, all based on the total weight of the adhesive polyethylene composition.

EFFECT: obtained adhesive composition is suitable for multilayer structures, such as three-layer coatings for metal pipes, and improves peel strength of coatings subjected to a shorter water cooling time.

15 cl, 3 dwg, 8 tbl, 6 ex