Basf Se Corporation

Geert Janssens

Klaus Hahn

Konrad Knoll

Maximilian Hofmann

Klemens Massonne

Christoph Fleckenstein

Peter Deglmann

Patrick Spies

Ingo Bellin

Manfred Döring

Jochen Wagner

Carsten Schips

Sabine Fuchs

Holger Ruckdäschel

Hartmut Denecke

Robert Baumann

Michael Bock

Jens Assmann

Axel Franzke

Jon S Speier

Georg Gräβel

Michael Ciesielski

Olaf Kriha

Michael Lorenz

Daniela Longo-Schedel

Christof Zylla

Jens Aβmann

Jürgen Lambert

Maximillian Hofmann

Jurgen Lambert

Ciesielski Michael

Andreas Gietl

Georg Grässel

Georg Gräßel

Jens Aßmann

The invention relates to polyphenyl polymethylene polyisocyanates having an NCO number of at least 29% comprising less than 2% by weight ureas, less than 8% by weight carbodiimides or uretonimines and less than 1000 ppm organic chlorine compounds. The polyphenyl polymethylene polyisocyanates can be prepared according to the invention by reacting The polyphenyl polymethylene polyisocyanates can further be prepared according to the invention, prior to the thermal cleavage, by removing compounds having free amino groups or urea groups present in the carbamate crude mixture from the carbamate crude mixture by filtration of the carbamate crude mixture comprising the polyphenyl polymethylene polycarbamates over a solid acidic adsorbent in the presence of an acid dissolved in the carbamate crude mixture.

Low by-product content polyphenylene polymethylene polyisocyanates

Flame retardant

The invention relates to elastic expanded polymer foams and also a process for producing expanded polymer foams by sintering a mixture comprising foam particles P1 and P2 composed of different thermoplastic polymers or polymer blends, wherein the foam particles P1 are obtained by prefoaming expandable, thermoplastic polymer particles comprising

Elastic expanded polymer foam based on polyolefin/styrene polymer mixtures

Expandable, thermoplastic polymer bead material composed of a multiphase polymer mixture which comprises blowing agent and has at least one continuous phase of a thermoplastic polymer, where at least two different disperse phases Pand Pare present, disperse in the continuous phase, and also to processes for its production, and to use for the production of elastic molded foams.

Elastic particle foam based on polyolefin/styrene polymer mixtures

Disclosed is a polymer foam with density in the range from 5 to 120 kg/mcomposed of a polymer component including at least one styrene polymer and from 0.1 to 5 parts by weight of a flame retardant mixture including at least one phosphorus compound of the formula PRRR. A process for producing the polymer is also disclosed.

Halogen-free, phosphorus-containing flame-retardant polymer foams

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Friedelsheim, Germany

Geert Janssens