Beiersdorf Ag

Tesa Se

Karsten Seitz

Peter Jauchen

Ralf Hirsch

Wolfgang Schacht

Frank Henke

Matthias Seibert

Andreas Meier

Herbert Knolle

Sabine Thormeier

Christian Detzer

The in-line repair operations in the automotive industry require high-temperature masking tapes which satisfy a particular profile of requirements. Hence such masking tapes must be temperature-stable and must have a high crosslinking potential. Masking tapes employed are tapes coated with thermally crosslinking natural rubber (NR) adhesives which have a crosslinker resin/phenolic resin component. Thermally reactive pressure-sensitive adhesives of this kind are prepared by a process comprising a non-thermoplastic rubber constituent of the pressure-sensitive adhesive and a crosslinker system, the crosslinker system comprising a promoter component and as crosslinking component a reactive phenolic resin, where, in the process, the rubber constituent and a first component of the crosslinker system are mixed homogeneously in a mixing assembly, at a first processing temperature of the mixing assembly, to give a premix, a premix temperature being established in the premix; subsequently the premix is cooled from the premix temperature to a final composition temperature which is lower than the first premix temperature; and lastly the second component of the crosslinker system is added to the premix.

Process for preparing a thermally reactive pressure-sensitive adhesive

Process for the simultaneous treatment of the top and bottom sides of a web of paper support each with a liquid coating material, wherein

Process for the simultaneous treatment of the top and bottom sides of a

Pressure-sensitive self-adhesive tape comprising a backing which is coated on both sides with pressure-sensitive adhesive compositions and is composed

Polyurethane-based self-adhesive tape

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Buxtehude, Germany

Karsten Seitz