Covestro Intellectual Property Gmbh & Co. Kg

Covestro Deutschland Ag

Fabian Schuster

Dirk Achten

Martin Melchiors

Roland Wagner

Harald Kraus

Rolf Gertzmann

Thomas Büsgen

Thomas Buesgen

Nicolas Degiorgio

Wolfgang Arndt

Jörg Büchner

Stefanie Eiden

Jonas Kuenzel

Joerg Buechner

Jörg Tillack

Joerg Tillack

Achim Weber

Ann-Christin Bijlard-Jung

Jonas Künzel

Ralf Rott

Ingo Steffens

An adhesive composition includes a polyurethane polymer, a solvent and a co-solvent. The polyurethane polymer is an internally and/or externally hydrophilized thermoplastic polyurethane having an Mw of ≥50000 g/mol. The solvent is a polar-aprotic solvent. The co-solvent is selected from water, a primary alcohol having ≤10 carbon atoms, a vicinal diol or a mixture of at least two of the aforementioned compounds. The solvent and the co-solvent are present in such amounts that they form a homogenous mixture without the formation of a second phase when combined together at 20° C. The hydroxyl group content is ≥1 weight-%, based on the total weight of the composition. The polyurethane polymer content is ≥10 weight-%, based on the total weight of the composition and the composition forms a single continuous liquid phase. Examples for solvent/co-solvent combinations are methylethyl ketone (MEK) and water or MEK and ethanol.

Solvent-borne polyurethane adhesives with high molecular weight, high OH content and low solution viscosity

The invention relates to a 2K coating formulation that is printed without a mask using a valve jet printer.

Method for coating a substrate with a drop-on-demand printer

The invention relates to storage-stable pigmented formulations containing isocyanate groups, comprising at least one pigment a., at least one component b. containing isocyanate groups, at least one wetting agent and/or dispersant c., at least one isocyanate group-containing grinding resin d. and optionally solvents, wherein the formulation has a viscosity increase of less than 500% after storage at 50° C. over a period of at least 3 days. The invention also relates to the preparation of such formulations and to the use thereof.

Storage-stable pigmented isocyanate group-containing formulations with isocyanate group-containing grinding resin and use thereof

A method of applying a material comprising a fusible polymer comprises the step of: The fusible polymer has the following properties: wherein the filament, during the application process, has an application temperature of &#x2265;100&#xb0; C. above the melting point of the fusible polymer for &#x2264;20 minutes. There are still free NCO groups in the material including the fusible polymer.

Method for applying a material containing a meltable polymer with free NCO groups

A method of applying a material comprising a fusible polymer comprises the step of: The fusible polymer has the following properties: There are furthermore blocked NCO groups present in the material comprising the fusible polymer.

Method for applying a material containing a meltable polymer with blocked NCO groups

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Leverkusen, Germany

Fabian Schuster