Abstract: The invention relates to a transparent heatsealable biaxially oriented polyester film including a base layer B and amorphous top layers A on each surface of the base layer B. The invention further relates to a process for producing the film and to the use thereof.

Abstract: The invention relates to a white biaxially oriented film predominantly formed from a polyester whose diol component includes at least 80 mol-% of 1,4-cyclohexanedimethanol (CHDM), and whose dicarboxylic acid component includes at least 80 mol-% of one or more benzenedicarboxylic acid(s) and/or one or more naphthalene dicarboxylic acid(s). The dicarboxylic acid component includes a main dicarboxylic acid component forming an at least 55 mol-% portion, chosen from either 2,6-naphthalene dicarboxylic acid or terephthalic acid. The dicarboxylic acid component further includes a secondary dicarboxylic acid component, present in an amount of at least 18 mol-%, with the secondary dicarboxylic acid component differing from the main dicarboxylic acid component. The invention further relates to a method for producing the film and its use.

Abstract: The invention relates to a biaxially oriented film, predominantly formed from a polyester whose diol component includes at least 35 mol-% of 1,4-cyclohexanedimethanol (CHDM) and additionally contains at least one further diol different from CHDM. The dicarboxylic acid component of the polyester includes at least 80 mol-% of one or more benzenedicarboxylic acid(s) and/or one or more naphthalene dicarboxylic acid(s). The dicarboxylic acid component of the polyester includes a main dicarboxylic acid component forming an at least 55 mol-% portion of the dicarboxylic acid component, chosen from 2,6-naphthalene dicarboxylic acid or terephthalic acid. The dicarboxylic acid component further includes a secondary dicarboxylic acid component, present in an amount of at least 5 mol-% of the dicarboxylic acid component, with the secondary dicarboxylic acid component differing from the main dicarboxylic acid component. The invention further relates to a method for producing the film and its use.

Abstract: The invention relates to biaxially oriented polyester films that include a chain extender in addition to the polyester. Such films find use in all applications typical of biaxially oriented polyester films, especially in outdoor films, as a ribbon cable, as a backside laminate of solar modules and in electrical insulation applications.

Abstract: The invention relates to an at least three-layer, biaxially oriented polyester film with two white outer layers and carbon-black-filled base layer, where the thickness of the outer layers is from 4 to 15 ?m, the thickness of the base layer is ?the total of the thicknesses of the outer layers, the white outer layers comprise at least 15% by weight of TiO2, the base layer comprises at least 4% by weight of TiO2, the carbon-black-containing base layer comprises from 1 to 8% by weight of carbon black, and the SV value of the film is at least 600, where all % by weight data are based on the weight of the respective layer, and also to a process for the production of this type of film and to the use of the film in particular in blinds, including roller blinds, Venetian blinds, or projection screens, or in displays.

Abstract: A polyester film with a high transparency, such as a transparency of from 70 to 99.5%, is provided that includes barium sulfate particles whose median particle size is from 0.7 to 7 ?m. The barium sulfate particles have an inorganic coating formed from oxides, mixed oxides, or a mixture of oxides of Si, Al, Sn, Fe, In, and/or Sb. The coating makes the barium sulfate particles more compatible with the polyester matrix, thereby minimizing the haze of the film. Preference is given to mixed oxides of SiO2 and Al2O3, and PET is the preferred polyester.

Abstract: The invention relates to a sealable, biaxially oriented polyester film comprising a base layer B, a sealable cover layer A, and a non-sealable cover layer C. The invention further relates to a method for producing the film and to the use thereof.

Abstract: The invention relates to a multilayer, antimicrobially modified, biaxially oriented polyester film that includes at least one base layer (B) and an outer layer (A) that has been applied to the base layer and that has also been antimicrobially modified, wherein the antimicrobially modified outer layer (A) comprises a silver-loaded zeolite, has a layer thickness <8 ?m, and the layer thickness is not greater than 1.3 times the median particle size of the zeolite. The invention further relates to a process for the production of the film, and to the use of the film.

Abstract: Biaxially stretched film with polymeric constituents formed mainly of polyester in which the film includes at least one copper salt and one halide, with the resulting film having an AC (alternating current) dielectric strength of at least 100 kV/mm at 23° C. and 50 Hz. The invention further relates to the use of the film of the invention, in particular in solar modules, and also to a process for its production.

Abstract: The invention relates to a heat-sealable coextruded, biaxially oriented polyester film which is peelable with respect to nonpolar substrates, for example PS and PP, and which encompasses a base layer (B) and an outer layer (A), in which a) the base layer (B) is mainly formed from a copolyester containing ethylene terephthalate units and ethylene isophthalate units, where the proportion of ethylene isophthalate units in the copolyester is from 3 to 15 mol %, and b) the outer layer (A) is formed from 30 to 95% by weight of ethylene-polar-ethylene copolymer and 5 to 70% by weight of polyester, where the proportion of polar-ethylene in the copolymer is from 2.5 to 15 mol %. The outer layer (A) polyester preferably includes an ethylene-terephthalate-ethylene-isophthalate copolyester. The film is particularly suitable as peelable film (lid film) for food or drink containers.

Abstract: The invention relates to a white, coextruded, oriented polyester film with a base layer (B) and with at least one outer layer (A), where the base layer (B) includes a whitening pigment and/or void-forming incompatible polymer at a concentration of from 2 to 35% by weight (based on the weight of the base layer (B)), and from 0.01 to 15% by weight (likewise based on the weight of the base layer (B)) of a pigment that absorbs laser energy. The invention further relates to a process for production of these films and to their use as laser-cuttable and laser-inscribable film.

Abstract: The invention relates to a white, coextruded, oriented polyester film with a base layer (B) and with at least one outer layer (A), where the base layer (B) includes from 2 to 35% by weight, based on the weight of the base layer (B), of a whitening pigment and/or void-forming incompatible polymer, and from 0.01 to 15% by weight, based on the weight of the base layer (B), of pigment that absorbs laser energy. The outer layer (A) includes from 1.0 to 35% by weight (based on the weight of the outer layer (A) of whitening pigment and/or void-forming incompatible polymer, and this pigment and/or polymer is identical with or different from the pigment and/or polymer in the base layer (B). The invention further relates to processes for production of these films and to their use as laser-cuttable film.

Abstract: The invention relates to biaxially oriented polyester films which contain 0.25-20% by weight (based on the weight of the film) of a hydrolysis stabilizer based on epoxidized fatty acid esters and/or epoxidized fatty acid glycerides, and a chain extender. Such films find use in outdoor applications, as a ribbon cable, as a backside laminate of solar modules and in electrical insulation applications.

Abstract: The invention relates to a polyester film comprising at least one base layer (B) and at least one antimicrobially active coating, where this antimicrobial coating a) comprises an ammonium silane of the following formula (I) where R1 and R2 are in each case identical or different and, independently of each other, are hydrogen moieties or C1-C8-alkyl moieties, which are straight-chain or—in the case of C3-C8-alkyl moieties—can be branched, R1 and R2 preferably being identical and being —CH3; in aqueous dispersions, one, two or all of the R1 moieties are hydrogen; n is greater than 0 and smaller than 10, preferably from 2 to 5, and particularly preferably 3; m is greater than 0 and smaller than 30, preferably from 6 to 25, and particularly preferably from 15 to 20, and very particularly preferably 17; X? is chloride, sulfate, or nitrate; and b) the thickness of the coating is smaller than 1 ?m, preferably smaller than 0.3 ?m, and particularly preferably smaller than 0.15 ?m.

Abstract: The invention relates to a multilayer polyester film comprising a hydrolysis stabilizer, wherein the hydrolysis stabilizer is an epoxidized alkyl ester of fatty acid or is a mixture of epoxidized alkyl esters of fatty acid or is an epoxidized fatty acid glyceride or is a mixture of epoxidized fatty acid glycerides, and at least one external layer of the film does not comprise the hydrolysis stabilizer. The form in which the hydrolysis stabilizer is added to the polyester can be that of dry liquid, absorbed by a carrier material.

Abstract: The invention relates to biaxially oriented polyester films that include a chain extender in addition to polyester. Such films find use in all applications typical of biaxially oriented polyester films, especially in outdoor applications, as a ribbon cable, as a backside laminate of solar modules and in electrical insulation applications.

Abstract: The invention relates to a multilayer, white, biaxially oriented polyester film that includes a base layer (B) formed from a thermoplastic polyester plus a whitening pigment, the film further including at least one outer layer (A) formed from thermoplastic polyester. The outer layer (A) also includes, alongside a whitening pigment, a prescribed concentration of a phyllosilicate plus a prescribed concentration of carbon black particles. The invention further relates to a process for the production of the film, and to the use of the film as lid film for pots used for packaging.

Abstract: A process is described for production of a biaxially oriented film which comprises at one crystallizable thermoplastic as main constituent and comprises at least 500 ppm, based on the weight of thermoplastic, of a pigment. The production process uses at least 20% by weight, based on the weight of the film, of recycled material of the same type whose molecular weight has been increased by condensation processes.

Abstract: The invention relates to a transparent heatsealable biaxially oriented polyester film including a base layer B and amorphous top layers A on each surface of the base layer B. The invention further relates to a process for producing the film and to the use thereof.

Abstract: The present invention relates to a biaxially oriented polyester film, which a) has a base layer B, which includes a yellow dye and a red dye, b) has, on each side of the base layer B, at least one layer (A or C) which includes, based on the weight of layer A or C, less than 0.01% by weight of the yellow dye and less than 0.01% by weight of the red dye, and c) the film has one absorption maximum lying at from 400 to 500 nm in the UV/visible spectrum from 400 to 800 nm. Preferred dyes are anthraquinone dyes and perinone dyes; the polyester is preferably PET. After metallization or lamination, the film has a gold appearance, and is a suitable packaging material.