Basf Se Corporation

Silke Biedasek

Joachim Clauss

Gad Kory

Ning Zhu

Philippe Desbois

Achim Stammer

Axel Wilms

Heinrich Sack

Christian Schmidt

Florian Richter

Arnold Schneller

Rolf Minkwitz

Volker Seidl

Stefan Schwiegk

Andreas Wollny

Volker Rauschenberger

Uwe Witt

Hans-Ulrich Moritz

Mohammed Abboud

Isa Alexandra Queiroz Da Fonseca

Oliver Labisch

Paola Uribe Arocha

Frank Herboth

Dieter Reimer

Werner Pauer

Rony Knierim

Corinna Naundorf

The present invention relates to a process for producing a polymer film (P) comprising a polyamide composition (PC) by extruding the polyamide composition (PC) through an annular die and then stretching the tube thus obtained by blowing in air. The present invention further relates to the polymer film (P) obtainable by the process of the invention and to a process for packaging foodstuffs with the polymer film (P).

Shrink films comprising PA 6/6,6

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 invention relates to a device for synthesizing a polymer accompanied by separating a gaseous substance. Said device comprises: a reactor chamber () having a substantially circular cylinder-shaped upper section (), which is delimited by two circular surfaces () and a circumferential surface () and has a longitudinal cylinder axis, and a lower section (), the upper section () and the lower section () being connected to one another via the first circular surface (); an inlet opening (); a first outlet opening (), which is arranged in a wall of the lower section (); a second outlet opening (), which is arranged in the second circular surface () or in the circumferential surface () between the inlet opening () and the second circular surface (); and a removal device (), which is arranged so as to be movable along the longitudinal cylinder axis at least between the second circular surface () and the inlet opening (), and contacts the circumferential surface (). The invention further relates to a method comprising: feeding an oligomer melt () into a circular cylinder-shaped first section () of a reaction chamber () through an inlet opening () tangentially to a circumferential surface () of the first section (); polymerizing the oligomer melt () to form a polymer melt (); removing the polymer melt () from the reaction chamber () through a first outlet opening () of the reaction chamber (); and removing a gaseous substance () from the reaction chamber () through a second outlet opening () of the reaction chamber () above the inlet opening (). Deposits on at least one inner wall of the first section () of the reaction chamber () above the inlet opening () are removed by a removal device ().

Device for synthesizing a polymer with reduced formation of deposits in the reaction chamber

The present invention relates to a process for the production of a fiber-reinforced composite material with a polyamide matrix.

Process for the production of a fiber-reinforced composite material

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 novel process for the anionic polymerization of lactam monomers.

Process for polymerizing lactam

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Ludwigshafen, Germany

Silke Biedasek