Abstract: 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.

Abstract: The invention relates to a method for producing a biaxially oriented polypropylene film including at least one layer, which is constructed from propylene polymer B and a propylene polymer that has been recycled once. The film is used in capacitors.

Abstract: 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 ?-nucleation agent. The propylene block copolymer I of the external layers has a melting point exceeding 140° C. and the propylene block copolymer II of the internal layer has a melting range starting at a temperature ranging from 50 to 120° C. and the melting point of the propylene block copolymer I is greater than the melting point of the propylene block copolymer II.

Abstract: 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 <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.

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

Abstract: Single-layer or multilayer, biaxially oriented, microporous foil having a shut-off function, which comprises propylene homopolymer and propylene block copolymer, polyethylene and ?-nucleating agent.

Abstract: The present invention relates to simultaneously drawn opaque biaxially oriented film made of at least one cycloolefin copolymer (COC) containing layer. The COC is preferably at a concentration of 0.5 to 30% by weight, based on the layer. The invention further relates to an opaque, biaxially oriented polyhydroxycarboxylic acid film containing at least one layer containing a polymer based on hydroxycarboxylic acids and a cycloolefin copolymer (COC). The invention further relates to a process for producing the PHC film and the use thereof.

Abstract: The invention relates to a biaxially oriented, single-layer microporous film which has a shut-off function and is made of propylene homopolymer, propylene block copolymer I and ?-nucleation agent. The melting range of the propylene block copolymer I starts at a temperature ranging from 50 to 120° C. The invention also relates to using the film as a separator in primary or secondary battery.

Abstract: The invention relates to a film with controllable tear resistant properties, comprising at least one basic layer which contains at least one polymer I from at least one hydroxycarboxylic acid, and >0.1 wt. %, in relation to the weight of the layer, of a thermoplastic polymer II which is different from polymer I, and/or inorganic additives.

Abstract: 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 <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.

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

Abstract: The present invention relates to simultaneously drawn opaque biaxially oriented film made of at least one cycloolefin copolymer (COC) containing layer. The COC is preferably at a concentration of 0.5 to 30% by weight, based on the layer. The invention further relates to an opaque, biaxially oriented polyhydroxycarboxylic acid film containing at least one layer containing a polymer based on hydroxycarboxylic acids and a cycloolefin copolymer (COC). The invention further relates to a process for producing the PHC film and the use thereof.

Abstract: 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.

Abstract: The present invention relates to simultaneously drawn opaque biaxially oriented film made of at least one cycloolefin copolymer (COC) containing layer. The COC is preferably at a concentration of 0.5 to 30% by weight, based on the layer. The invention further relates to an opaque, biaxially oriented polyhydroxycarboxylic acid film containing at least one layer containing a polymer based on hydroxycarboxylic acids and a cycloolefin copolymer (COC). The invention further relates to a process for producing the PHC film and the use thereof.

Abstract: 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.

Abstract: The invention relates to a biaxially oriented electrical insulating film which contains a mixture from a polypropylene P1 and a polypropylene P2 which is different therefrom. The polypropylene P1 is a linear polypropylene and has an Mw/Mn>5 and a mesopentadene isotactic index of at least 95% and the polypropylene P2 has a long-chain branching.

Abstract: 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.

Abstract: Single-layer or multilayer, biaxially oriented, microporous foil having a shut-off function, which comprises propylene homopolymer and propylene block copolymer, polyethylene and ?-nucleating agent.

Abstract: The invention relates to a method for producing a biaxially oriented polypropylene film including at least one layer, which is constructed from propylene polymer B and a propylene polymer that has been recycled once. The film is used in capacitors.

Abstract: 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 ?-nucleation agent. The propylene block copolymer I of the external layers has a melting point exceeding 140° C. and the propylene block copolymer II of the internal layer has a melting range starting at a temperature ranging from 50 to 120° C. and the melting point of the propylene block copolymer I is greater than the melting point of the propylene block copolymer II.