ADHESIVE POLYURETHANE COMPOSITION Russian patent published in 2023 - IPC C09J175/06 

FIELD: leathers, fabrics and rubbers gluing.

SUBSTANCE: invention can be used for gluing leathers, fabrics and rubbers. The adhesive polyurethane composition includes a urethane ester rubber, a polyisocyanate and a polar organic solvent. The urethane ester rubber was obtained by reacting polybutylene glycol adipate with a molecular weight of 1850-2000, a chain extender - 2-bis-[4-(2-hydroxyethoxy)-phenyl]-propane and 4,4'-diphenylmethane diisocyanate at a molar ratio of the components of the reaction mixture of 1/1,1/2 respectively.

EFFECT: nvention makes it possible to increase the strength of the adhesive seam and reduce the preparation time of the adhesive polyurethane composition.

2 cl, 1 tbl, 8 ex