Wolff Walsrode Ag

Claudia M&uuml;ller

Rainer Brandt

Holger Eggers

Gregor Kaschel

Rudi Klein

Andreas Siegmar Gasse

Bernd Eilers

Dieter Neubauer

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 multilayer film having a lamination side and a heat-sealable side is described. The multilayer film comprises, a) an inner layer (i) ethylene/vinyl alcohol copolymer; b) a coupling agent layer (ii) and a separate coupling agent layer (ii&prime;), said inner layer (i) being interposed between and in contact with each of said coupling agent layer (ii) and said separate coupling agent layer (ii&prime;); c) at least one further layer (iii), said separate coupling agent layer (ii&prime;) being interposed between and in contact with each of said inner layer (i) and said layer (iii); d) at least one layer (iv), said coupling agent layer (ii) being interposed between and in contact with each of said inner layer (i) and said layer (iv); and e) a heat-sealable layer (v), said layer (iv) being interposed between and in contact with each of said coupling agent layer (ii) and said heat-sealable layer (v). Layers (i), (ii), (ii&prime;), (iii) and (v) of the multilayer film contain 0.1 to 3 wt. % of a sorbitan monoester, based on the total weight of said multilayer film. Layer (iii) defines the lamination side of the multilayer film, and the heat-sealable layer (v) defines the heat-sealable side of the multilayer film. Packaging materials comprising the multilayer film are also described.

Multilayer film with lamination and heat-sealable sides, and having antifogging properties

Growing community of inventors

Walsrode, Germany

Claudia Müller

Growing community of inventors

Walsrode, Germany

Claudia M&uuml;ller

Claudia Müller