Patent application number | Description | Published |
20110064934 | SINGLE-LAYER POLYPROPYLENE MEMBRANE FILM FOR BATTERIES, HAVING A SHUT-OFF FUNCTION - 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 β-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. | 03-17-2011 |
20110064989 | MEMBRANE FILE FOR BATTERIES, HAVING A SHUT-OFF FUNCTION - 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 β-nucleation agent. The propylene block copolymer I of the other layer has a melting point exceeding 140° 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° 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. | 03-17-2011 |
20110064990 | MICRO-POROUS MULTI-LAYER MEMBRANE FILM BASED ON POLYPROPYLENE FOR BATTERIES WITH A CUT-OFF 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 β-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. | 03-17-2011 |
20110244306 | MULTI-LAYER MICROPOROUS FILM FOR BATTERIES HAVING SHUT-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 β-nucleating agent, and at least one further porous layer. | 10-06-2011 |
20110244336 | SINGLE-LAYER MICROPOROUS FOIL FOR BATTERIES HAVING SHUT-OFF FUNCTION - Single-layer or multilayer, biaxially oriented, microporous foil having a shut-off function, which comprises propylene homopolymer and propylene block copolymer, polyethylene and β-nucleating agent. | 10-06-2011 |
Patent application number | Description | Published |
20080286561 | Pla Film Comprising Good Antistatic Properties - 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. | 11-20-2008 |
20090041965 | Label Film for a Blow Moulding Method - The invention relates to a biaxial oriented film with a microporous layer, comprising a propylene polymer and at least one β-nucleating agent the microporosity of which is generated by conversion of β-crystalline polypropylene on drawing the film and the use thereof for the labelling of containers in blow moulding. The Gurley value for the film is 10,000 to 300,000 Gurley. | 02-12-2009 |
20090169851 | PEELABLE SEALABLE PLA FILM - The invention relates to a multilayer biodegradable film produced from a base layer and at least one cover layer, which has a reduced seam strength and which can be used as a cover film for containers. Containers that are sealed with the film according to the invention can be opened more easily than those sealed with conventional film. | 07-02-2009 |
20100092627 | PACKAGING FOR UV STERILIZATION - 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. | 04-15-2010 |
20100092791 | SIMULTANEOUSLY DRAWN OPAQUE FILM MADE OF PLA - 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. | 04-15-2010 |
20100151219 | SIMULTANEOUSLY ORIENTED PLA FILM WITH IMPROVED MECHANICAL PROPERTIES - The present invention relates to a biaxially oriented polyhydroxycarboxylic acid film composed of at least one layer containing a polymer based on hydroxycarboxylic acid. The film is notable for good mechanical properties such as high breaking strength and modulus of elasticity. The invention further relates to a process for producing the PHC film and the use thereof. | 06-17-2010 |
20100255287 | LABEL FILM FOR DEEP DRAWING METHODS - The invention relates to the use of a bixailly oriented film having a porous layer, which contains propylene polymer and at least one β-nucleating agent and whose microporosity is generated by converting β-crystalline polypropylene during stretching of the film, for labeling containers during a drawing process. | 10-07-2010 |
20120202905 | NANOSCALE beta NUCLEATING AGENT FOR POLYPROPYLENE - 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. | 08-09-2012 |
20120288726 | SIMULTANEOUSLY DRAWN OPAQUE FILM MADE OF PLA - 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. | 11-15-2012 |
20130021719 | MICROPOROUS SEPARATOR-FILM FOR DOUBLE-LAYER CAPACITORS - 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. | 01-24-2013 |
20130037983 | LABEL FILM FOR BLOW-MOULDING METHOD - The invention relates to a biaxial oriented film with a microporous layer, comprising a propylene polymer and at least one β-nucleating agent the microporosity of which is generated by conversion of β-crystalline polypropylene on drawing the film and the use thereof for the labelling of containers in blow moulding. The Gurley value for the film is 10,000 to 300,000 Gurley. | 02-14-2013 |
20130040184 | HIGHLY POROUS SEPARATOR FOIL - 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. | 02-14-2013 |
20130134625 | LABEL FILM FOR DEEP DRAWING METHODS - 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 β-crystalline polypropylene into alpha-crystalline polypropylene during the stretching, the microporous layer facing toward the container. | 05-30-2013 |
20150017511 | HIGHLY POROUS SEPARATOR FILM HAVING A COATING AND A DISCONNECTING FUNCTION - The invention concerns a biaxially orientated, single- or multi-layered porous film which comprises at least one porous layer and this layer contains at least one propylene polymer and polyethylene;
| 01-15-2015 |
20150085426 | HIGHLY POROUS SEPARATOR FOIL - 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. | 03-26-2015 |
20150093627 | HIGHLY POROUS SEPARATOR FILM HAVING PARTIAL LAMINATION - 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 <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 <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. | 04-02-2015 |