Treofan Germany Gmbh & Co. Kg

Dominic Klein

Detlef Busch

Bertram Schmitz

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 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 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 multilayered, film which having a base layer and at least one covering layer, wherein the top layer contains at least one polymer of at least one aliphatic hydroxycarboxylic acid and 0.002 to 20% by weight starch-based particles relative to the weight of the covering layer. The film is characterized by good antistatic properties.

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Bexbach, Germany

Dominic Klein