ADHESIVE COMPOSITION AND ALUMINIUM LAYERED STRUCTURE CONTAINING IT WITH INCREASED ADHESIVE JOINTS INTERLAMINAR STRENGTH Russian patent published in 2017 - IPC C09J161/14 B82B3/00 

FIELD: chemistry.

SUBSTANCE: invention relates to the field of adhesive compositions based on phenol-formaldehyde resins intended for bonding of structures of various purposes, as well as laminated aluminium structures obtained with their use with increased interlaminar strength of adhesive joints. The adhesive composition is characterized by being obtained by the first three-component part mixing with the second three-component part. The first three-component part is obtained by stirring a solution of phenol-formaldehyde resin and a solution of hexareoresetin resin successively added to the rubber mixture solution. The second three-component part is obtained by dispersing the sulfur powder and aluminium oxyhydroxide nanopowder particles in butyl acetate. The amount of aluminium oxyhydroxide nanopowder particles in a weight ratio to the adhesive composition is selected from a range of 0.1 to 1.0%, preferably from a range of 0.4 to 0.7%. The aluminium oxyhydroxide nanopowder particles have a size selected from the range of 0.5 to 3.0 mcm. The laminated structure is characterized by comprising two layers of aluminium foil and a layer of a cured adhesive composition located therebetween, made in accordance with the claimed adhesive composition.

EFFECT: increased adhesive-cohesive interlaminar strength limit and increased adhesion of the adhesive composition to aluminium foil in layered structures.

6 cl, 2 dwg