Wolff Walsrode Ag

Andreas Siegmar Gasse

Rudi Klein

Gregor Kaschel

Holger Eggers

Rainer Brandt

Bernd Eilers

Heinrich Henze-Wethkamp

Claudia M&uuml;ller

Dieter Neubauer

Described is a single or multi-layered film having at least one polyamide layer (I) containing dispersed nanoscale nucleating particles. The smallest components of the dispersed nanoscale nucleating particles in layer (I) have an extension of less than 100 nm in at least one randomly selected direction for each component, based on a weighted average of all components of the dispersed nanoscale nucleating particles. Crystalline structures emanating from the surface of the dispersed nanoscale nucleating particles are formed after the layer (I) is cooled from the molten state at a rate of from 10 to 20&deg; C. per minute. The dispersed nanoscale nucleating particles are present in the polyamide layer (I) in an amount of from 10 ppm to 3000 ppm, based on the total weight of layer (I).

Transparent high strength polyamide film

Described is a film having at least a single layer and at least one copolyamide layer (I) containing dispersed nanoscale nucleating particles. Crystalline structures extending from the dispersed particle surfaces are formed after the layer (I) is cooled from a molten state at a cooling rate of from 10&deg; C. to 20&deg; C. per minute. The dispersed nanoscale nucleating particles are present in layer (I) in an amount of from 10 ppm to 2000 ppm, based on the total weight of layer (I). Also described is a method of using the film of the present invention in packaging foodstuffs.

Tough, dimensionally-stable transparent film having a copolyamide layer containing solid nanoscale filling materials with nucleating effect and its use for packaging foodstuffs

A multi-layered laminate suitable for production of thermoformed packaging is disclosed. The laminate contains a polyamide-containing layer, a sealing layer and optionally an EVOH-containing layer and is characterized in that it contains water in an amount of 0.5 to 2.5 percent.

Flexible, polyamide-containing multi-layer film having an improved thermo-forming capacity due to moistening

The present invention relates to sterilisation-resistant barrier films based on polyamides and polyolefins, wherein the film consists of

Sterilization-resistant barrier film based on polyamides and polyolefins

The present invention relates to a highly transparent, sterilisation-resistant film, optionally containing polyamide, with elevated mechanical strength, which is thermoformable and heat-sealable, which film contains at least one layer of a polymer blend prepared from polypropylene (PP) and linear low density polyethylene (LLDPE), wherein the proportion of PP in the polymer blend is 81 to 99.8 wt. % and the proportion of LLDPE is 0.2 to 19 wt. % and the LLDPE has a density of between 915 and 950 kg/m.sup.3, preferably of 925 to 940 kg/m.sup.3.

Highly transparent thermoforming film with a heat sealing layer based on

The present application relates to a multilayer film with the layer structure A1 / B1 / A2 / C / D, wherein

Multilayer, thermoformable, heat sealable film and use thereof in the

Heat-sealable composite film having good surface slip with very good thermoforming properties based on polyamide and polyolefins, wherein the film consists of

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Walsrode, Germany

Andreas Siegmar Gasse