Treofan Germany Gmbh & Co. Kg

Bertram Schmitz

Detlef Busch

Dominic Klein

Karl-Heinz Kochem

Wilfrid Tews

Thilo Mohr

Christian Peters

Petra Häde

Mathias Roth

Yvonne Düpre

Melanie Wisniewski

Yvonne Duepre

Dirk Walgenbach

Bjoern Dragun

Björn Dragun

Karlheinz Kochem

The present invention relates to a microporous film and use thereof as separator with greater resistance to puncturing.

Microporous separator film having homogeneous porosity and greater resistance to puncturing

The invention describes an ion exchange membrane formed from a biaxially orientated single or multiple-layered &#x3b2;-porous polypropylene film which comprises at least one &#x3b2;-nucleating agent and an ion-conducting polymer and has a Gurley value of at least 10000 s.

Ion-exchange membrane made of a biaxially stretched &#x3b2;-porous film

The invention relates to a biaxially oriented, single or multilayer porous film comprising at least one porous layer, said layer containing at least one propylene polymer, wherein (i) the porosity of the porous film is 30% to 80%, and (ii) the permeability of the porous film is &#x3c;1000 s (Gurley value). The invention is characterized in that (iii) the porous film is provided with a partially inorganic, preferably ceramic lamination, and (iv) in that the laminated porous film has a Gurley value of &#x3c;1200 s. The invention further relates to a method for producing such a film, and to the use thereof in high-energy or high-performance systems, in particular in lithium batteries, lithium ion batteries, lithium polymer batteries, and alkaline earth batteries.

Highly porous separator film having partial coating

The invention relates to a method for producing a dispersion of nanoscale dicarboxylic acid salts, to the use of these dispersions for producing a compound, and to the use for producing films. The invention further relates to the use of the compounds for producing films.

Nanoscale &#x3b2;-nucleating agent for polypropylene

The invention relates to a biaxially oriented single- or multilayer porous foil, the porosity of which is generated by transformation of ss-crystalline polypropylene during orientation of the foil. The Gurley value of the foil is &#x3c;250 s. The invention also relates to a process for producing the foil by using a low transverse stretching velocity for the transverse orientation process.

Highly porous separator foil

The present invention relates to a method for the disinfection, partial disinfection or sterilization of a product by means of UV radiation. A product is enclosed with a UV permeable packaging material made of polyhydroxycarboxylic acid and subsequently disinfecting, partially disinfecting or sterilizing in the packaged state by means of irradiation with UV radiation.

Packaging for UV sterilization

The invention relates to a biaxially oriented microporous film composed of at least two coextruded layers encompassing an external shut-off layer and another layer, wherein both layers contain a mixture of propylene homopolymer and propylene block copolymer and &#x3b2;-nucleation agent. The propylene block copolymer I of the other layer has a melting point exceeding 140&#xb0; C. and the propylene block copolymer II of the external shut-off layer has a melting range starting at a temperature ranging from 50 to 120&#xb0; C. The melting point of the propylene block copolymer I is greater than the melting point of the propylene block copolymer II. The film can be used as a separator in a primary or secondary battery.

Membrane file for batteries, having a shut-off function

The invention relates to a biaxially orientated, single or multi-layered porous film made of propylene homopolymer and/or propylene block copolymer and ss-nucleation agent. Said film has a Gurley value of between 50 to &#x3c;400 s and shrinkage in the longitudinal direction of &#x3c;5% at 100 DEG C./1 hour, and a transverse shrinkage of &#x3c;10% at 100 DEG C./1 hour.

Microporous separator-film for double-layer capacitors

The invention relates to a method for producing a labeled container which uses deep drawing, in which a label which is cut to size is laid in a mold and a deep-drawable thick film is heated using heating elements to a temperature at which the polymer is thermoplastically deformable and subsequently the film is drawn into a mold using a molding tool or pneumatically, so that the film is tailored to the mold and a container is molded and simultaneously the inserted label is applied, wherein the label comprises a biaxially oriented film having a microporous layer, which has an open-pored, net-like structure, which was generated during the production of the film by converting &#x3b2;-crystalline polypropylene into alpha-crystalline polypropylene during the stretching, the microporous layer facing toward the container.

Label film for deep drawing methods

The invention relates to a biaxial oriented film with a microporous layer, comprising a propylene polymer and at least one &#x3b2;-nucleating agent the microporosity of which is generated by conversion of &#x3b2;-crystalline polypropylene on drawing the film and the use thereof for the labelling of containers in blow molding. The Gurley value for the film is 10,000 to 300,000 Gurley.

Label film for blow-moulding method

Single-layer or multilayer, biaxially oriented, microporous foil having a shutdown function, which comprises at least one shutdown layer I, which comprises propylene homopolymer and ss-nucleating agent and polyethylene.

Microporous foil for batteries having shutdown function

The invention relates to a biaxially oriented microporous film composed of at least three coextruded layers encompassing an internal cut-off layer and two external layers, wherein all three layers contain a mixture of propylene homopolymer and propylene block copolymer and &#x3b2;-nucleation agent. The propylene block copolymer I of the external layers has a melting point exceeding 140&#xb0; C. and the propylene block copolymer II of the internal layer has a melting range starting at a temperature ranging from 50 to 120&#xb0; C. and the melting point of the propylene block copolymer I is greater than the melting point of the propylene block copolymer II.

Micro-porous multi-layer membrane film based on polypropylene for batteries with a cut-off function

The invention relates to a biaxially oriented, multilayer microporous foil including one layer made from propylene homopolymer, a propylene block copolymer, a polyethylene and &#x3b2;-nucleating agent, and at least one further porous layer.

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Sarreguemines, France

Bertram Schmitz