STRUCTURAL ADHESIVE COMPOSITIONS Russian patent published in 2016 - IPC C09J163/00 C08G59/18 C08G59/42 C08G59/50 C08G59/22 C08G59/40 C08K3/04 

FIELD: chemistry.

SUBSTANCE: invention relates to versions of structural adhesive compositions and to substrate with coating. According to first version, composition contains (a) first component containing: epoxy adduct, which is product of reaction of reagents, including first epoxy compound, polyol and anhydride and/or diatomic acid, as well as second epoxy compound, (b) if necessary, particles of rubber, having nucleus/shell structure, (c) second component, which chemically reacts with first component, and (d) particles of graphene carbon. According to second version, composition contains (a) plasticiser with locked epoxy group, which is product of reaction reagents containing epoxy compound, polyol or caprolactone, anhydride and/or diatomic acid, (b) thermally activated latent curing agent, (c) if necessary, particles of graphene carbon. In compliance with third version, composition contains (a) plasticiser with locked epoxy group, which is product of reaction reagents containing epoxy compound and polyester primary or secondary amine, and (b) thermally activated latent curing agent. Substrate with coating contains said composition.

EFFECT: invention enables higher joint strength, as well as increase storage life of adhesive during storage.

23 cl, 1 dwg, 9 tbl, 8 ex