| abstract |
The invention relates to a method for gluing film-like substrates, in which a two-component polyurethane adhesive is applied onto a film and thereafter a second film, wherein a two-component polyurethane adhesive is used consisting of - a component A containing at least one prepolymer having at least two NCO groups, - a component B containing at least one polymeric or oligomeric cross-linking agent that comprises at least two groups reactive with NCO groups. The invention is characterized in that component B contains 0.05 to 5% by weight of a low-molecular compound C, wherein said compound C shall comprise - a nucleophilic group which is reactive to NCO groups, and - a group forming H bridges, selected from O=C - O' or O=C -C- O' or O=C - C = C - O' or protonated forms. |