POLYURETHANE ADHESIVE FOR LAMINATION Russian patent published in 2012 - IPC C08G18/42 C08G18/58 C08G18/76 B32B7/12 B32B27/40 C09J175/06 C08L75/14 

FIELD: chemistry.

SUBSTANCE: disclosed is a polyurethane adhesive for laminating films. The polyurethane adhesive for laminating films contains at least one NCO-reactive polyurethane prepolymer and/or polyisocyanates and is cross-linked only through NCO-/acidic H groups. The adhesive is characterised by that it contains between 0.5 and 20 wt % low-molecular weight compound (A) having molecular weight lower than 2000 g/mol, which contains at least one group which is reactive with respect to primary amine groups, selected from an epoxy group, oligomeric polyethers of unsaturated carboxylic acids or vinylphosphonic acid, wherein compound (A) reacts with primary amine groups at a rate slower than the rate of the cross-linking reaction. Disclosed also is use of said adhesives in a method of producing laminated multilayer films which are glued using the disclosed polyurethane adhesives.

EFFECT: films glued using said adhesive contain a negligible amount of aromatic amines capable of migrating.

13 cl, 3 ex