Bayer Materialscience Ag

Covestro Deutschland Ag

Bayer Aktiengesellschaft

Bayer Intellectual Property Gmbh

Covestro Intellectual Property Gmbh & Co. Kg

Benecke-kaliko Ag

Thomas Feller

Dirk Achten

Thorsten Rische

Hans Georg Grablowitz

Karin Naujoks

Thomas Michaelis

Jan Mazanek

Sebastian Dörr

Holger Casselmann

Christoph Gürtler

Jürgen Meixner

Jan Weikard

Michael Mager

Christoph Irle

Rolf Gertzmann

Steffen Hofacker

Meike Niesten

Jürgen Köcher

Burkhard Fugmann

Gerald Kurek

Uwe Klippert

Torsten Pohl

Christoph G&uuml;rtler

Sophie Viala

Jan Schönberger

Florian Golling

Juergen Meixner

Hans-Peter Klee

Tanja Hebestreit

Daniel Rudhardt

Melita Dietze

Dirk Iben

Ingo Gipperich

Alfred Zastrow

Michael Heckes

Heino Koch

Eberhard König

Erhard Lühmann

Juergen Urban

Eva Urban, Legal Representative

Anne Urban, Legal Representative

Maria Almató Guiteras

Jürgen Urban

Saskia Beuck

Hans-Georg Grablowitz

Martin Kreuter

Petra Janßen

Wei Zhuang

Evgeny Avtomonov

The present invention relates to aqueous polyurethane dispersions comprising pentamethylene diisocyanate and to coatings obtainable therefrom. Said coatings, given a high density of urethane and urea groups, are softer than coatings that are obtained with polyurethane dispersions comprising other aliphatic diisocyanates, for example hexamethylene diisocyanate.

Polyurethane dispersions of low hardness

The present invention relates to novel aqueous polyurethane dispersions produced using at least two poly(tetramethylene glycol) polyether polyols with different average molar masses and at least two different polyisocyanate components.

Poly(THF)-based polyurethane dispersions

The present invention relates to an aqueous polyurethaneurea dispersion, wherein the polyurethaneurea has specific formation components, and which is characterized in that it has a content of &#x2014;COOH groups of at least 0.75% by weight, where 0% to 35% of these groups have been neutralized, and in that 5 to 50 mol % of isocyanate groups present have been reacted with a monofunctional component. The invention further relates to the use of this dispersion as coating composition, to a fiber having a cured coating and to a composite material.

Aqueous polyurethaneurea dispersion containing free acid groups

An aqueous polyurethane dispersion comprises a polyurethane polymer obtainable by the reaction of an isocyanate-functional polyurethane prepolymer A) with an isocyanate-reactive component B), wherein the isocyanate-functional prepolymer A) is obtainable by the reaction of a mixture comprising: a polyol component comprising a polyester polyol obtainable by the reaction of a mixture comprising an aliphatic dicarboxylic acid and at least one diol selected from the group consisting of linear aliphatic diols and a branched aliphatic diols; and a polyisocyanate component comprising &#x2267;50 weight-%, based on the total weight of polyisocyanates, of dicyclohexylmethane diisocyanate. The isocyanate-reactive component B) comprises a compound comprising sulfonate groups which is employed in an amount of &#x2267;3.5 weight-% to &#x2266;10 weight-%, based on the total weight of the polyol component, the polyisocyanate component and the isocyanate-reactive component B). The invention also concerns the use of such an aqueous polyurethane dispersion for coatings, a method of manufacturing a coated substrate and to a coated substrate.

Aqueous polyurethane dispersion for waterproof breathable coatings

The present invention relates to an aqueous blocked polyurethaneurea dispersion which is obtainable by reacting at least one polyisocyanate, one blocking agent for isocyanate groups, one polyamine having at least one carboxyl and/or carboxylate group, and water. Additionally provided by the invention are a coating composition comprising the aqueous blocked polyurethaneurea dispersion, the use of the aqueous blocked polyurethaneurea dispersion or of the coating composition for producing a coating, a coating obtainable using the aqueous blocked polyurethaneurea dispersion or the coating composition, and a method for producing the aqueous blocked polyurethaneurea dispersion.

Aqueous blocked polyurethane-urea dispersion

The invention relates to a process for producing polyurethane foams, by frothing and drying mixtures of specific polyurethane dispersions and crosslinkers.

Production of polyurethane foams

The present invention relates to aqueous polyurethane urea dispersions having integral functional groups and coating agents produced therefrom, to a method for the production thereof, and to the use thereof for producing coating agents.

Functionalized polyurethane polyurea dispersions

The present invention relates to aqueous non-ionically hydrophilised binding-agent dispersions based on polyurethane ureas with terminal polyethylene-oxide groups, to the preparation thereof, and to the use thereof for producing coatings.

Non-ionically hydrophilised binding-agent disperisions

The invention relates to a method for coating sheet-form textile materials, in which there is applied to a sheet-form textile material an aqueous dispersion containing anionically modified polyurethane ureas comprising (A) aromatic diisocyanate, (B) polyether polyol having a mean molecular weight greater than 1500, (C) at least one compound containing from 1 to 2 isocyanate-reactive groups and at least one ionogenic group, (D) polyamine having a mean molecular weight of at least 32, and (E) water, wherein the mean total functionality of the isocyanate-reactive compounds B to D is from 1.85 to 2.2, the molar ratio of the isocyanate groups of component A to the isocyanate-reactive groups of components B to D is greater than 1, and the polyurethane ureas have a content of from 800 to 1500 mmol of urethane groups/kg of anionically modified polyurethane urea and a content of from 800 to 1800 mmol of urethane plus urea groups/kg of anionically modified polyurethane urea.

Aqueous dispersion of anionically modified polyurethane ureas for coating a sheet-form textile material

This invention relates to solutions of polyurethaneureas in &#x3b3;-butyrolactone or mixtures of &#x3b3;-butyrolactone with toxicologically acceptable organic solvents. A process for coating substrates using these polyurethaneurea solutions, and substrates coated by said process are also provided. The substrates coated according to the invention are preferably textile products or leather, but materials such as wood or concrete can also be coated according to the invention.

Polyurethane urea solutions

Coating compositions that are stable to thermal yellowing that include coating materials containing I) one or more dispersions of hydroxyl-free polyurethanes and/or polyurethane-ureas, II) one or more aqueous solutions or dispersions of ionically modified, hydroxyl-containing polyurethanes and/or polyurethane-ureas, other than the constituents of component I), and III) at least one crosslinker. The dispersions are obtained by A) preparing an NCO-containing polyurethane prepolymer by reacting polyisocyanates with polymeric polyols and/or polyamines having number-average molecular weights of 400 to 8000 g/mol, isocyanate-reactive, ionically or potentially ionically hydrophilicizing compounds and/or isocyanate-reactive nonionically hydrophilicizing compounds; B) either dissolving the prepolymer obtained from step A) in aliphatic ketones or, diluting the prepolymer solution if the preparation has already been carried out in the presence of A6) by further addition of aliphatic ketones, and C) reacting the remaining free NCO groups of the prepolymer with a chain extender component.

Coating material composition

The present invention relates to new hydrophilicized blocked polyisocyanates, a process for preparing them and their use.

Hydrophilicized blocked polyisocyanates

Novel sizing compositions, their preparation and use. The compositions contain water-dispersible and/or water-soluble and alkylamine-blocked polyisocyanates, film-forming resins, coupling agents and lubricants. The isocyanates are synthesized from at least one polyisocyanate, at least one ionic and/or potentially ionic and/or nonionic compound, and at least one blocking agent which is at least 20% by weight aralkylamines.

Sizing composition

The present invention relates to a binder composition containing  The polyurethane dispersions are manufactured in the presence of components a) and b). It is possible for components a) and b), depending on the grade used, to be incorporated into the polymer framework as structural units. For this reason binder compositions comprising  The present invention also relates to a process for the preparation of these binder compositions. Further, the present invention relates to coating, adhesive and sizing compositions containing the binder compositions according to the invention. Finally, the present invention also relates to glass fibers sized with sizing compositions containing the binder compositions according to the invention.

Stabilized aqueous polyurethane-polyurea dispersions

Aqueous coating compositions based on polyurethane dispersions which cure under the influence of high-energy radiation, to a process for preparing them and to their use. The coating compositions contain a polyisocyanate, a polyurethane containing free-radically polymerizable groups, and an initiator which is capable of initiating a free-radical polymerization.

Radiation-curing coating compositions

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Solingen, Germany

Thomas Feller