HOT-MELT ADHESIVE COMPOSITION AND METHOD OF ITS MANUFACTURING Russian patent published in 2023 - IPC C09J153/02 C08L53/02 C08F236/04 C08F297/04 

FIELD: adhesive polymer compositions.

SUBSTANCE: group of invention is related to a hot-melt adhesive composition and a method for its preparation. More specifically, the hot melt adhesive composition includes: a diblock copolymer containing a styrene monomer unit and a conjugated diene monomer unit, which in turn includes an isoprene unit and an epoxidized isoprene unit and is described by the following chemical formula ; a triblock copolymer, which is obtained by carrying out a coupling reaction for said diblock copolymer; and a crosslinked block copolymer obtained by crosslinking two or more of these diblock copolymers and triblock copolymers, wherein the crosslinker is at least one of polyalkylene glycol and ethylene glycol.

EFFECT: proposed group of inventions provides improved adhesive strength and high-temperature resistance, as well as preservation of viscosity at high temperatures.

13 cl, 3 tbl, 15 ex