Bayer Aktiengesellschaft

Covestro Deutschland Ag

Bayer Materialscience Ag

Covestro Intellectual Property Gmbh & Co. Kg

Erhard Michels

Hartmut Nefzger

Klaus Pleiss

Peter Haas

Klaus Lorenz

Dirk Wegener

Gerhard Klein

Reinhard Albers

Erika Bauer

Christian Weber

Marcel Schornstein

Hans-Detlef Arntz

Florian Hupka

Harald Rasselnberg

Klaus Brecht

Stephan Schleiermacher

Stephanie Vogel

Ernst Felske

Alexander Eckhardt

Marc Sch&uuml;tze

Patrick Klasen

Koichi Kawamura

Marc Schütze

Ulrich Boddenberg

Hans-Norbert Dick

Franz Scholtis

Hans G Weber

Gerlinde Koss-Nasser

Marion Frommont

The present invention relates to polyurethane hybrid polymers and to a process for producing same.

Polyurethane hybrid polymers and process for the production thereof

The invention relates to polyurethane casting resins for producing polyurethane potting compounds, which can be obtained from a reaction mixture of polyisocyanates, polyepoxides, polyols, latent catalysts and optionally additives. The invention also relates to a method for producing said compounds.

Polyurethane casting resins and potting compounds produced therefrom

The present invention relates to polymer dispersions in polyester polyols, a process for producing them and their use for the production of polyurethanes, in particular microcellular polyurethanes. These polyester polyols have sulfur atoms and are free of olefinically unsaturated groups.

Polymer dispersions in polyester polyols

The present invention relates to a process for cleaning multi-product production plants for polyester polyols with a cleaning polyol. The cleaning polyol can be used as a raw material in the production of further polyols.

Process for cleaning production plants for polyester polyols

Polyurethane elastomers having a defined node density are produced from specific polyetherester polyols. These elastomers are particularly useful for the production of microcellular and solid polyurethane elastomer components.

Polyurethane elastomers and processes for their preparation and use

A solid and/or cellular polyurethane elastomers which are produced using polyester polyols are disclosed. The elastomers which exhibit improved stability to hydrolysis are characterized in that their preparation is carried out in the presence of at least one esters of monobasic carboxylic acid or polybasic carboxylic acids, the (first) dissociation constant (pK) of which is 0.5 to 4.

Polyurethane elastomers which exhibit improved stability to hydrolysis

This invention relates to a process for producing polyester-polyurethane compositions, and to the stabilization thereof in relation to hydrolytic ageing phenomena by an active ingredient combination comprising compounds containing carbodiimides with lactone derivatives, to mouldings produced therefrom and to the use thereof for semi-rigid, solid and/or cellular mouldings.

Method for producing semi-rigid compact or cellular shaped bodies with a PUR base and the stabilization thereof; shaped bodies produced according to said method and the use thereof

Two step procedure for the production of semi-hard solid polyurethane

A process for the CFC-free production of cellular polyurethane molded parts/articles with solid surfaces by reacting a reaction mixture of per se known starting materials in sealed molds, to yield polyurethane foams. Carbamates obtainable from aliphatic aminoalcohols and carbon dioxide are used as blowing agents, optionally in conjunction with other blowing agents. The process is suitable for producing foam coverings on steering wheels, spoilers and protective upholstery in car interiors, and for producing soles of shoes or shoe components.

Process for the CFC-free production of cellular polyurethane molded parts

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Cologne, Germany

Erhard Michels