Henkel Ag & Company, Kgaa

Christoph Loschen

Hans-Georg Kinzelmann

Christoph Lohr

Marcel Blodau

Michael Hoeltgen

Andre Te Poel

Holger Eichelmann

Natalie Steinhausen

Ekaterina Ryjkina

Thomas Kostka

Philipp Spuhler

Michael HÖLTGEN

Pavel Gentschev

The invention relates to a crosslinkable composition containing reactive polymers selected from among (i) prepolymers having reactive NCO groups or (ii) polymers which have reactive silane groups, optionally further additives and at least one metal-based catalyst, wherein the composition contains up to 10% by weight of retarding substance selected from among cyclic &#x3b1;-hydroxy ketones and/or triphenols having three adjacent OH groups.

PU compositions containing complexed catalysts

A method for adhesively bonding film-like substrates, in which a two-component polyurethane adhesive is applied to a film and then a second film is applied, a two-component polyurethane adhesive being used that consists of&#x2014;a component A containing at least one prepolymer having at least two NCO groups,&#x2014;a component B containing at least one polymeric or oligomeric crosslinker having at least two groups that react with NCO groups, wherein component B contains 0.05 to 5 wt. % of a low-molecular-weight compound C, which&#x2014;should have a nucleophilic group that reacts with NCO groups and&#x2014;contains a hydrogen-bridging group, selected from O&#x2550;C&#x2014;Oor O&#x2550;C&#x2014;C&#x2014;Oor O&#x2550;C&#x2014;C&#x2550;C&#x2014;Oor protonated forms.

Method for gluing film-like substrates

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Erkrath, Germany

Christoph Loschen