Bayer Aktiengesellschaft

Agfa-gevaert Ag

Bayer Materialscience Ag

Hermann Perrey

Martin Matner

Hans Rudolph

Thomas Scholl

Hans J Rosenkranz

Karlheinz Hildenbrand

Karl-Friedrich Neuhaus

Reinhold Hornle

Hermann Brinkmeyer

Gustav Sinn

Ernst Schwinum

Hans-Hagen Von Dohren

Wilhelm Brandes

Paul Reinecke

Rolf Dhein

Manfred Schmidt

Rudolf Merten

Christian Wamprecht

Walter Meckel

Jan Mazanek

Kirkor Sirinyan

Gerhard D Wolf

Helmut Ritter

Wilfried Haese

Ulrich Von Gizycki

Karlheinz Wolf

Wolfgang Henning

Karl Fuhr

Christian Wegner

Christian Rasp

Herbert Heidingsfeld

Manfred Dollhausen

Wilhelm Goyert

Klaus Wehling

Otto Exner

Konrad Nonn

Hans-Joachim Meiners

Erich Eimers

Karl-Heinrich Meyer

Wolfgang Oberkirch

Robert Kuth

Matthias Wintermantel

Bernhard Lehmann

Rüdiger Musch

Knut Panskus

Jurgen Winkler

Otto Bendszus

Burkhard Nippe

Franz Alfes

Aziz E Sayed

Ralf Timmermann

Ralf Lange

Siegfried Kussi

Horst Muller-Albrecht

Reinhard Preuss

Heinrich Kober

Friedrich Kowitz

Hellmut Striegler

Diez Heine

Gunter Schmidt-Kastner

Hans-Joachim Freier

Peter Finkel

Thomas Augustin

Birger Knickel

Peter Egerer

Siegfried Keifer

Jürgen Ramthun

Georg Frank

Jurgen Schulze

Jurgen Ick

Wolfgang Bornatsch

Gerhard Hubler

Wolfram V Langenthal

Harry Welz

Reinhold Rudisch

Polychloroprene dispersions containing particles of urea derivatives having a particle size in the range of 10 to 400 nm, which can be used in adhesive compositions. The adhesive compositions can be used to provide substrates containing adhesive layers obtained from the compositions.

Dispersions

Reactive polyurethane hotmelts comprising crystallizing polyesterpolyols based on fumaric acid and 1,6-hexanediol. These hotmelts exhibit good pressure-sensitive adhesive (PSA) properties over a very broad temperature range. The reactive polyurethane hotmelts are prepared by mixing a polyol mixture containing at least on crystallizing polyesterpolyol with an excess of polyisocyanates.

Reactive polyurethane hotmelts with large PSA range

The invention relates to a new three-part process, which can also be employed on a large industrial scale, for the preparation of polyurea lubricating greases, which is characterised

Process for the preparation of polyurea greases

This invention relates to mixtures of at least one elastomer latex with at least one dispersion of an aromatic polycarbonate, aromatic polyester or aromatic polyester carbonate.

Mixtures of elastomer latices and dispersions of aromatic

This invention relates to heat-sensitive polyurethane dispersions and their use in the preparation of hollow articles by the dipping-process, for coating webs and the production of elastomeric filaments.

Heat-sensitive polyurethane dispersions

Specific new polyurea-modified polyetherurethanes and their uses as breakers for water-in-oil emulsions, in particular as breakers for water-in-oil emulsions.

Polyurea-modified polyetherurethanes and their use as emulsion breakers

In a test strip for the detection of a component in a liquid sample, the strip comprising a support layer, a microporous polymer layer and a reagent for the detection of the component to be determined, the improvement wherein the microporous polymer layer is a membrane which has an asymmetric pore structure with the narrower pores being on the side to which the sample is applied, and the support layer is macroscopically smooth. The porous membrane is produced by coagulation from solution.

Test device and a method for the detection of a component of a liquid

A transparent reagent carrier layers in analytical agents for dry chemical detection of constituents of aqueous sample solutions, the reagent carrier layer consisting of a water-soluble or water-swellable component and a film-forming component.

Transparent test strip system

Polymer membranes metallized by wet chemistry are highly suitable, for example, for the separation of inert, reactive and fermentation gases. The metallization is carried out after activation with noble-metal complex compounds which have at least two functional groups. Preferred metal coatings are those of Cu, Co and Ni.

Metallized membrane systems

An indoline derivative of the formula (I) ##STR1## in which R.sup.1 denotes H or C.sub.1 -C.sub.8 -alkyl;

Indoline and 1,2,3,4-tetrahydroquinoline N(dicarboalkoxyvinyl)

Biological material such as microorganisms is immobilized by polymerizing in the presence of the biological material a readily soluble polyetherpolyol having some hydroxyl groups esterified with acrylic and/or methacrylic acid and remaining hydroxyl groups reacted with an isocyanate group-containing derivative of an unsaturated carboxylic acid or a polyfunctional isocyanate. Preferably, the isocyanate derivative of an unsaturated carboxylic acid is isocyanatoethyl acrylate, isocyanatoethyl methacrylate of 4-isocyanato-3-methyl-2-butyl-acrylate and the polyfunctional isocyanate is a diisocyanate or polyisocyanate. Beads can be produced by forming droplets in a water-immiscible medium and polymerizing. Polymerization can be carried out under inert gas in the presence of radical initiators or by irradiation with actinic light.

Immobilization of biological material within a polymer matrix

The invention is directed to a process for the production of polyurethanes suitable for thermoplastic processing comprising mixing

Process for the production of radiation-crosslinked thermoplastic

New sulphur-containing polyethers based on optionally polymeric thioalkylene oxides and polyalkylene oxides, method for their preparation and their use as breakers for water-in-oil emulsions, in particular, as breakers for crude oil emulsions. The polyethers are of the formula ##STR1## in which R.sub.1 and R.sub.2, independently of each other, represent hydrogen and/or a straight-chain or branched C.sub.1 to C.sub.20 alkyl group,

Condensation products of thioalkylene oxides of polythio-alkylene oxides

This invention relates to a magnetic recording carrier in which the magnetic layer and/or the backing layer contains, in addition to the usual additives, radiation hardenable dispersing agents based on ethylenically unsaturated phosphoric acid ester mixtures capable of forming bataine type stuctures and consisting of reaction products of (A) an acrylic acid ester and/or oligo acrylate containing 1 OH group per molecule, (B) a tertiary alkylamine containing 1 OH group per molecule and (C) phosphorus pentoxide, the reaction products having acid numbers below 200.

Magnetic recording carrier containing radiation hardenable dispersing

Thermotropic, wholly-aromatic polyester carbonates which contain condensed radicals of 4,4'-dihydroxydiphenyl have a reduced viscosity in the melt, without the mechanical properties of the product suffering therefrom.

Thermotropic, aromatic polyester carbonates, process for the production

Growing community of inventors

Krefeld, Germany

Hermann Perrey