Basf Se Corporation

Basf Se (Ellwanger & Baier Patentanwälte)

Simon Gramlich

Achim Stammer

Wolfgang Schrof

Marco Krüger

Faissal-Ali El-Toufaili

Peter Gutmann

Claus Gabriel

Juergen Ahlers

Angela Ulzhöfer

Thomas Meier

Frank Niedermaier

Angela Ulzhoefer

Rainer Ostermann

Joerg Erbes

Florian Richter

Marco Krueger

Tobias Kortekamp

Andreas Bauder

Philipp Kloke

Jörg Erbes

Cecile Schneider

Natalie Beatrice Janine Herle

Raphael Dabbous

Isa Alexandra Queiroz Da Fonseca

Rainer Hensiek

Ruth Lohwasser

Markus Steffen

Alexandra Wiedemann

Onno Graalmann

Michel Gassmann

Stefan Muessig

Ansgar Schmit

Stefan MÜSSIG

The present invention relates to a method for producing a molded body by the selective laser sintering of a sinter powder (SP). The sinter powder (SP) contains at least one polyamide (P) and 5 to 50 wt %, preferably 10 to 50 wt %, of at least one aluminum silicate. The at least one aluminum silicate has a D50 value in the range of 2.5 to 4.5 &#x3bc;m. The present invention also relates to molded bodies obtainable by means of the method according to the invention.

Processes, powders, and shaped bodies of polyamides and calcined kaolin with particular size distribution

The present invention relates to a process for producing a polyamide powder (PP) comprising at least one semicrystalline polyamide (P) and at least one additive (A). The semicrystalline polyamide (P) and the at least one additive (A) are initially compounded with one another in an extruder and subsequently introduced into a solvent (SV) in which the at least one semicrystalline polyamide (P) then crystallizes to obtain the polyamide powder (PP). The present invention further relates to the thus obtainable polyamide powder (PP) and to the use of the polyamide powder (PP) as sintering powder (SP) and also to a process for producing a shaped body by selective laser sintering of a polyamide powder (PP).

Process for producing a polyamide powder by precipitation

The present invention relates to a process for continuously producing a polyamide powder (PP) comprising at least one semicrystalline polyamide (P). The present invention further relates to the polyamide powder (PP) thus obtainable and to the use of the polyamide powder (PP) as sinter powder (SP), and also to a process for producing a shaped body by exposing a layer of a polyamide powder (PP).

Method for continuously producing a polyamide powder

The present invention relates to a polyamide composition (PC) which comprises at least one polyamide (P) and at least one additive (A). The present invention further relates to the use of the polyamide composition (PC) in a selective laser sintering process, in an injection molding process, for producing molded articles and in an extrusion process.

Polyamide composition containing a polyamide and an additive

The present invention relates to a process for preparing a polyaryl ether by reacting components (a1) and (a2) in the presence of a carbonate compound (C) to obtain a salt-containing polymer (SP) comprising the polyaryl ether and a salt (S). After the reaction, the salt (S) is extracted from the salt-containing polymer (SP) to obtain a desalinated polymer (DP) comprising the polyaryl ether.

Desalination of polyaryl ethers by means of melt extraction

A method for desalinating a salt-containing polymer (SP) comprising a polyaryl ether having a softening temperature Tand a salt (S), comprising the steps of

The invention relates to a process for producing polyarylene ether beads from a polyarylene ether solution, comprising the steps of

Division of a polyarylene ether solution

In a process for producing polyamides by polycondensation of polycondensable polyamide-forming monomers and/or oligomers in reaction mixtures comprising same, which may be water-containing but are free from organic solvents, the polycondensation is effected in an agitated reactor under agitation in a first step in the liquid phase and after a phase change taking place during the process in the same reactor is effected in a subsequent second step in the solid state, wherein the temperature in the reactor is below the melting point of the polyamide in the second step at least.

Production of polyamides by polycondensation

The process for producing aromatic polyether sulfones via reaction of a dichlorodiphenyl sulfone component with a bisphenol component as monomers in the presence of alkali metal carbonate in the melt in the absence of solvents and diluents comprises carrying out the reaction in a mixing kneader which is operated with a shear rate in the range from 5 to 500 s.

Process for producing aromatic polyether sulfones

The invention relates to a method for the production of composite elements comprising at least one outer layer a) and a layer b) firmly bonded to it, an adhesion promoter c) being applied between the outer layer a) and the layer b) firmly bonded to it, the outer layer a) being continuously moved and the adhesion promoter c) and the layer b) firmly bonded to it or the starting materials thereof being applied in succession to the outer layer, the application of the adhesion promoter c) being effected by means of a rotating disk which is mounted horizontally or with a slight deviation from the horizontal of up to 15&#xb0;, wherein the rotating disk is provided with teeth on the edge.

Method for producing composite elements

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Hirschberg, Germany

Simon Gramlich