Basf Se Corporation

Basf Aktiengesellschaft

Henkel Ag & Company, Kgaa

Axel Wilms

Bernd Bruchmann

Martin Weber

Stefan Schwiegk

Gad Kory

Joachim Clauss

Arnold Schneller

Volker Rauschenberger

Florian Richter

Philippe Desbois

Achim Stammer

Manoranjan Prusty

Martin Jochen Klatt

Heinrich Sack

Rainer Neuberg

Silke Biedasek

Volker Warzelhan

Gunter Pipper

Dietrich Scherzer

Christian Maletzko

Christian Schmidt

Martin Baumert

Alexander Traut

Manfred Julius

Heinz-Walter Schneider

Norbert Wagner

Ulrich Pegelow

Christoph Benisch

Andreas Eipper

Mareile Job

Frank Hermanutz

Michael Siemer

Andreas Wollny

Markus Brym

Robert Weiss

Harry Y Hu

Jürgen Demeter

Christof Kujat

Alfons Ludwig

Helmut Winterling

Jochen Engelmann

Andreas Radtke

Lionel Gehringer

Ulrike Breiner

Jürgen Deininger

Dirk Gerhard

Florian Hennenberger

Ning Zhu

Isa Alexandra Queiroz Da Fonseca

Giovanni D'Andola

Elke Marten

Raquel Fernandez Rodiles

Thomas Sauer

Gerald Lippert

Kurt Krempel

Oliver Sötje

Fin Lammers

Eric S Noon

Frank Niedermaier

Frank Gaehr

Birgit Glüsen

Robert Weiβ

Richard J Lair

Anka Bernnat

Gulay Serhatkulu

Julien Courtois

Jordan Kurikov

Jörn Duwenhorst

Bernd Hackel

Harold Colwell

Inga Marie Balke

Lee Ann Dombrowski

Hans-Harald H&uuml;nger

David M Lange

Klaus Michelsen

Robert Schulz

R Udiger Schmitz

Walter Gotz

Ronald Frans Maria Lange

Byung Seok Kim

Carolin Trenka

Roland Ettl

Joachim Strauch

Walter Götz

Bs Kim

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

A process for producing an activated monomer composition comprising at least one lactam and/or lactone, one catalyst, and one activator permits storage of the resultant monomer composition, since this is stable with respect to polymerization. Said monomer composition is used inter alia in producing a polyamide molding via ring-opening, anionic polymerization.

Process for producing monomer compositions and use of these for producing a polyamide molding

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

An encapsulated electronic assembly comprises an electronic component and a foamed thermoplastic shell disposed about the electronic component. The foamed thermoplastic shell is formed from a thermoplastic encapsulant comprising a thermoplastic resin and a filler and is foamed with a foaming agent. A method of encapsulating the electronic component to form the encapsulated electronic assembly is also provided. The method includes the steps of melting the thermoplastic encapsulant, foaming the thermoplastic encapsulant, and injection molding the foamed thermoplastic encapsulant about the electronic component to form the foamed thermoplastic shell.

Method of encapsulating an electronic component

The instant invention includes an article and a method of forming the article. The article includes a mixture of a thermoplastic polyurethane and polyamide 6/66 copolymer. The thermoplastic polyurethane has a Shore Hardness of at least 36D as determined using DIN EN ISO 1183-1.

Article comprising thermoplastic polyurethane and polyamide 6/66 copolymer

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

The use of thermoplastic molding materials comprising

Use of polyamides that are resistant to corrosion and stress cracking

Thermoplastic molding compositions, comprising

Polyamide resistant to heat aging

Polyamide, whose main chain contains a chemically bound amine selected from the group consisting of 2-methyl-1,5-diaminopentane and 1-amino-2-R-cyclopent-1-ene, where R is a functional group capable of combining with an amino group to form an amide group, and processes for preparing such a polyamide and fibers, films and moldings comprising such a polyamide.

Polyamides

Inherently light- and heat-stabilized polyamides with improved wet fastness

The disclosure is a process for preparing polyamides by concentrating the wash water extract from the extraction of polyamide to an extractables content of not more than 85% by weight, adding fresh lactam down to a water content of from 0.5 to 13% by weight, and effecting at least one adiabatic expansion during the polymerization.

Preparation of polyamides

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Frankenthal, Germany

Axel Wilms