Basf Se Corporation

Dsm Resins B.v.

Hilti Aktiengesellschaft

Stefan Schwiegk

Axel Wilms

Gad Kory

Joachim Clauss

Christian Schmidt

Volker Rauschenberger

Florian Richter

Monika Moench

Martin Weber

Helmut Reichelt

Philippe Desbois

Arnold Schneller

Achim Stammer

Ning Zhu

Christian Maletzko

Peter Ittemann

Faissal-Ali El-Toufaili

Peter Mauthe

Heinrich Sack

Silke Biedasek

Norbert Wagner

Frank Hermanutz

Michael Siemer

Andreas Wollny

Christof Kujat

Alexander Traut

Dirk Gerhard

Isa Alexandra Queiroz Da Fonseca

Giovanni D'Andola

Wolfgang Hubinger

Frank Niedermaier

Frank Gaehr

Julien Courtois

Ronald Frans Maria Lange

Fritz Ziegert

Thomas Folda

Bernd Hackel

A polyarylene ether sulfone comprising endgroups of formula (I), a process for its manufacture, a molding composition comprising the polyarylene ether sulfone, use of the molding composition and fiber, film or shaped article produced using the molding composition. 

Polyarylene ether sulfone comprising naphthalic acid anhydride endgroups

The invention relates to a process for continuously preparing polyamide oligomers. This comprises continuous conveying of an aqueous solution of polyamide-forming monomers from a reservoir vessel into an oligomerization reactor, heating of the aqueous solution beyond a dissolution or storage temperature, the residence time of the monomer solution in the oligomerization reactor being limited and the pressure or the partial vapor pressure of the water being adjusted such that a conversion of monomers to polyamide oligomers does not exceed a maximum value and/or the polyamide oligomers formed do not phase-separate or spontaneously crystallize in solid form, and continuous discharge of the polyamide oligomers from the oligomerization reactor. A polyamide oligomer preparable by this process can be provided continuously in a mixture with water in a process for preparing a semicrystalline or amorphous, thermoplastically processible polyamide and then postcondensed to give a polyamide. This polyamide can be used for production of moldings by means of injection molding, multicomponent injection molding, injection molding/welding, extrusion, coextrusion, blow molding or thermoforming.

Method for continuously producing polyamide oligomers and producing semicrystalline or amorphous polyamides that can be thermoplastically processed

The present invention relates to a method for producing semi-aromatic copolyamides with a high diamine excess in the reaction batch.

Method for producing semi-aromatic copolyamides with a high diamine excess

The present invention relates to a process for the preparation of an aliphatic or partially aromatic polyamide, in which an aqueous composition of the monomers is subjected to an oligomerization at elevated temperature and increased pressure, the reaction mixture is optionally subjected to a first decompression to reduce the water content, the (optionally decompressed) reaction mixture is heated within a short time to a temperature above the melting temperature of the polyamides and the heated reaction mixture is subjected to a (further) decompression to reduce the water content and to an after-polymerization.

Process for the continuous preparation of an aliphatic or partially aromatic polyamide

The present invention relates to a process for preparing an aliphatic or semiaromatic polyamide oligomer, in which an aqueous composition of the monomers is subjected to an oligomerization at elevated temperature and elevated pressure and the oligomerization output is preferably subjected to an expansion.

Method for the continuous production of an aliphatic or semi-aromatic polyamide oligomer

The present invention relates to a process for preparing an aliphatic or semiaromatic polyamide, in which a polyamide prepolymer is subjected to a solid state polymerization.

Method for producing aliphatic or partially aromatic polyamides, said method comprising a solid-phase polymerization process

The novel polyamide fibers with dyeable particles comprise 80% to 99.95% by weight of polyamide, 0.05% to 20% by weight of dyeable particles and 0% to 19.95% by weight of added substances, the % by weight summing to 100%.

Polyamide fibers with dyeable particles and production thereof

A process for producing porous structures from polyamide by dissolving the polyamide in an ionic liquid and precipitating or coagulating the dissolved polyamide by contacting the solution with a liquid precipitant medium. Fibers are produced from the dissolved polyamide in a wet-spinning process by precipitation in protic solvents, in particular water, a C1-4-alkanol or mixtures thereof, and subsequent freeze-drying. Foils, films or coatings are produced by blade coating the dissolved polyamide onto a substrate surface, optionally spraying with protic solvent, in particular water, a C1-4-alcohol or mixtures thereof, dipping into a precipitation or coagulation bath, freeze-drying of the resulting foil, of the film or of the coated substrate. Molded parts are prepared by extracting the dissolved polyamide with protic solvents, preferably water, a C1-4-alcohol or mixtures thereof, wherein the dissolved polymer is transformed to a solid or wax-like state by cooling and extracted after subsequent molding.

Method for producing porous structures from synthetic polymers

A plugging compound for the chemical fastening of anchor bolts, threaded sleeves and screws in drill-holes, comprising a reactive resin and--spatially separated therefrom--a curing agent for the resin, includes from 0.0005 to 2% by weight of a piperidinyl or tetrahydropyrrolyl nitroxide as inhibitor in the reactive resin.

Plugging compound for chemical fastening

A plugging compound for chemical fastening technology is based on a free-radically polymerizable resin and a free-radical initiator spatially separated therefrom. The plugging compound in question is a self-supporting and storage-stable material which can be inserted in that form directly into a drill-hole.

Self-supporting plugging compound

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Neustadt, Germany

Stefan Schwiegk