Basf Se Corporation

Isa Alexandra Queiroz Da Fonseca

Rainer Birli

Angelika Keller

Wolfgang Rohde

Arnold Schneller

Achim Stammer

Peter Gutmann

Achim Loeffler

Joachim Clauss

Torsten Mäurer

Axel Wilms

Gad Kory

Heinrich Sack

Patrick Spies

Juergen Ahlers

Volker Rauschenberger

Norbert Güntherberg

Christian Koenig

Dejan Petrovic

Simon Gramlich

Stefan Schwiegk

Florian Richter

Tobias Rosendahl

Igor Shishkov

Christian Schmidt

Daniel Freidank

Shu Wang

Andreas Bauder

Silke Biedasek

Ning Zhu

Daniela Longo-Schedel

Martin W Kraus

Florian Hennenberger

Christian Baltes

Judith Christine Braeuer

Dirk Opfermann

Caroline Mages-Sauter

Alfons Jochum

Siegbert Bouche

Georg Graessel

Markus Schmidt

Sibylle Burkhart

Rene Holschuh

Chuan Long Fu

Judith Braeuer

Shukui Wang

Described herein are polyamide foam particles including a polymer mixture including: (A) from 25 to 95 wt.-% of at least one polyamide, which is different from a copolyamide (B); and (B) from 5 to 75 wt.-% of at least one copolyamide prepared by polymerizing the following components: (B1) from 15 to 84 wt.-% of at least one lactam; and (B2) from 16 to 85 wt.-% of monomer mixture (M) including; (M1) at least one C-Cdimer acid; and (M2) at least one C-Cdiamine; where the sum of the components (B1) and (B2) are 100 wt.-%. Also described herein is a process for preparing such polyamide foam particles and polyamide particle foam moldings obtainable by steam-chest molding.

High crystallinity polyamide foam particles and foam moldings

Expandable, blowing agent-containing pellets based on high temperature thermoplastics having a glass transition temperature according to ISO 11357-2-1999 of at least 180&#xb0; C., wherein the expandable, blowing agent-containing pellets comprise at least one nucleating agent and have a poured density according to DIN ISO 697:1982 in the range from 400 to 900 kg/mand a mass in the range from 1 to 5 mg/pellet, processes for production thereof and foam particles obtainable therefrom having a glass transition temperature according to ISO 11357-2-1999 of at least 180&#xb0; C., wherein the expanded foam particles comprise at least one nucleating agent and have a poured density according to DIN ISO 697:1982 in the range from 10 to 200 kg/m, and particle foams obtainable therefrom and the use thereof for producing components for aviation.

Expandable, expanding-agent-containing granules based on high-temperature thermoplastics

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

This invention relates to a continuous process for making a polymer polyol, the polymer polyol produced according to the said process and its applications.

Process for making a polymer polyol

The present invention relates to a porous inorganic body comprising pores A having a pore size Sin the range of from 0.005 to 20 micrometer and a total pore volume V, and comprising pores B having a pore size Sin the range of from more than 20 to 1000 micrometer and a total pore volume V, wherein the total pore volume of the pores having a pore size in the range of from 0.005 to 1000 micrometer is Vand wherein the ratio R=V/Vis in the range of from 0.3 to 0.7 as determined via mercury intrusion porosimetry.

Porous inorganic body

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Ludwigshafen, Germany

Isa Alexandra Queiroz Da Fonseca