Wolff Walsrode Ag

Wolff Walsrode Aktiengessellschaft

Wipak Walsrode Gmbh Co. & Kg

Rudi Klein

Andreas Siegmar Gasse

Rainer Brandt

Ingo Schinkel

Gregor Kaschel

Holger Eggers

Heinrich Henze-Wethkamp

Wolfgang Ermert

Claudia M&uuml;ller

Hans W Funk

Dorit Nelke

Jaquie Richards

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

The present invention relates to a mixture consisting of

Polyamide mixtures which contain solid particles

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

Heat-sealable multilayer film having good surface slip with improved

Heat-sealable composite films, stretched at least uniaxially, comprising a base layer, of a propylene polymer, which is provided on at least one of its surfaces with an adhesion promoter layer and a heat-sealable layer of a thermoplastic polyurethane elastomer.

Heat-sealable, stretched composite flims

The invention relates to composite packing films shrinkable by deep drawing and consisting of at least one copolyamide layer containing at least 50% by weight of .epsilon.-caprolactam units and at least one heat-sealable layer, and optionally, an adhesion-promoting layer.

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Walsrode, Germany

Rudi Klein