HOT-MELT ADHESIVE HAVING IMPROVED ADHESION Russian patent published in 2012 - IPC C09J123/00 C09J123/10 C09J123/12 C09J131/02 

FIELD: chemistry.

SUBSTANCE: hot-melt adhesive contains at least one copolymer of ethylene and/or propylene and α-olefin, having 4-20 carbon atoms, which is obtained via metallocene-catalysed polymerisation, at least one adhesive resin, as well as at least one ternary copolymer based on α-olefins having 2-5 carbon atoms, and (meth)acrylic esters, and additives. The ternary copolymer based on α-olefins having 2-5 carbon atoms and (meth)crylic esters contains carboxyl and anhydride groups, built through polymerisation or radical grafting of 0.1-7.5 wt % α,β-unsaturated monomers containing acid groups, or anhydride groups.

EFFECT: adhesive has good adhesion, particularly with plastic, metallic and lacquer surfaces, which remains elastic at low temperature, and exhibits high stability in heat.

8 cl, 5 ex