Abstract: The present invention relates to a transparent, peelable polyester film incorporating at least one biaxially oriented polyester film (=base layer (B)) and at least one peelable covering layer (A) coated offline thereon, in which the covering layer (A) is at least 85 wt. % made up of a polyester of aromatic and aliphatic dicarboxylic acids and aliphatic diols, and the arithmetic mean value of the absolute ordinate values Sb of the covering layer (A) is less than 300 nm and the reduced peak height Spk of the covering layer (A) is less than 700 nm. The invention further relates to a production process for this peelable film and use thereof as sealing film for APET and/or RPET meal trays.

Abstract: A transparent peelable polyester film is provided having a base layer (B) with first and second surfaces. A layer (C) is applied on the base layer (B). A heat-sealable layer (A), peelable to APET AND RPET, is applied on the opposing surface of the base layer (B). The heat-sealable and peelable outer layer (A) is formed from (a) from 85 to 99% by weight of polyester and (b) from 1 to 15% by weight of other substances. The polyester is formed from 25 to 95 mol % of units derived from at least one aromatic dicarboxylic acid and from 5 to 75 mol % of units derived from at least one aliphatic dicarboxylic acid, and the polyester includes at least 10 mol % of units derived from linear or branched diols having more than 2 and the layer (C) includes crosslinked acrylate and/or methacrylate-based copolymers.

Abstract: The invention relates to transparent packaging for vacuum forming, inter alia, formed from a biaxially oriented, thermoformable polyester film as lower film (A) and a biaxially oriented polyester film as upper film (B) that is both heat-sealable and peelable (at least when the material is hot) in relation to the lower film (A). The present invention further relates to the use of such packaging to produce sealed, thermoformed packs, and to the processes for their respective production.

Abstract: The present invention relates to a transparent, biaxially oriented, thermoformable polyester film including at least 85% by weight of a copolyester whose dicarboxylic acid components derive to an extent of 85 to 94 mol % from terephthalic acid-based units and to an extent of 6 to 15 mol % from isophthalic acid-based units. The inventive films exhibit a surface elasticity modulus in the range from 4500 to 6400 N/mm2; a sum total of the strengths (?5) in longitudinal direction and in transverse direction in the range from 170 to 220 MPa; a density of less than 1390 kg/m3; a haze of less than 2.0%; a clarity of at least 85%; a gloss of at least 120 and a thickness in the range from 50 to 300 ?m. The invention further relates to processes for producing such films, and to the use thereof.

Abstract: A transparent, peelable polyester film is provided with clarity greater than 80% including a biaxially oriented polyester film as base layer (B) and an offline coated heat-sealable outer layer (A) that is peelable relative to ready-meal APET or RPET trays. The heat-sealable and peelable outer layer (A) includes from 85 to 99 wt % polyester and from 1 to 15 wt % other substances, the polyester including of from 25 to 95 mol % of units derived from at least one aromatic dicarboxylic acid and from 5 to 75 mol % of units derived from at least one aliphatic dicarboxylic acid. The polyester incorporates at least 10 mol % of units derived from diols having more than 2 carbon atoms. The mass of the dry outer layer (A) is from 1 to 5 g/m2. Production processes for the foregoing film, and use thereof as scalable film for ready-meal trays is also provided.

Abstract: The invention relates to transparent packaging for vacuum forming, inter alia, formed from a biaxially oriented, thermoformable polyester film as lower film (A) and a biaxially oriented polyester film as upper film (B) that is both heat-sealable and peelable (at least when the material is hot) in relation to the lower film (A). The present invention further relates to the use of such packaging to produce sealed, thermoformed packs, and to the processes for their respective production.

Abstract: The present invention relates to a transparent packaging for vacuum forming including a specific biaxially oriented thermoformable polyester foil as lower foil (A) and a specific biaxially oriented polyester foil as upper foil (B) that can be heat-sealed to the lower foil (A), and to a process for the production of such packing, and also use thereof.

Abstract: Coextruded, unstructured, transparent and thermoformable polyester films are provided including at least one base layer (B) made of a-PET and one heat-sealable outer layer (A). The heat-sealable outer layer (A) includes at least 80% by weight of polyester with from 25 to 95 mol % of units derived from at least one aromatic dicarboxylic acid and 5 to 75 mol % of units derived from at least one aliphatic dicarboxylic acid, along with aliphatic diols. The outer layer (A) also includes up to 0.4% by weight of inorganic or organic particles with median diameter d50 2.0 to 8.0 ?m. The thickness of the outer layer (A) is 10 to 100 ?m, and the thickness of the film is in the range 100 to 1500 ?m. The invention further relates to processes for producing the inventive film, and also to packaging for foods or other consumable products, such as trays.

Abstract: The present invention relates to a transparent, biaxially oriented, thermoformable polyester film including at least 85% by weight of a copolyester whose dicarboxylic acid components derive to an extent of 85 to 94 mol % from terephthalic acid-based units and to an extent of 6 to 15 mol % from isophthalic acid-based units. The inventive films exhibit a surface elasticity modulus in the range from 4500 to 6400 N/mm2; a sum total of the strengths (?5) in longitudinal direction and in transverse direction in the range from 170 to 220 MPa; a density of less than 1390 kg/m3; a haze of less than 2.0 %; a clarity of at least 85%; a gloss of at least 120 and a thickness in the range from 50 to 300 ?m. The invention further relates to processes for producing such films, and to the use thereof.

Abstract: The present invention relates to a transparent packaging for vacuum forming including a specific biaxially oriented thermoformable polyester foil as lower foil (A) and a specific biaxially oriented polyester foil as upper foil (B) that can be heat-sealed to the lower foil (A), and to a process for the production of such packing, and also use thereof.

Abstract: A transparent peelable polyester film is provided having a base layer (B) with first and second surfaces. A layer (C) is applied on the base layer (B). A heat-sealable layer (A), peelable to APET AND RPET, is applied on the opposing surface of the base layer (B). The heat-sealable and peelable outer layer (A) is formed from (a) from 85 to 99% by weight of polyester and (b) from 1 to 15% by weight of other substances. The polyester is formed from 25 to 95 mol % of units derived from at least one aromatic dicarboxylic acid and from 5 to 75 mol % of units derived from at least one aliphatic dicarboxylic acid, and the polyester includes at least 10 mol % of units derived from linear or branched diols having more than 2 and the layer (C) includes crosslinked acrylate and/or methacrylate-based copolymers.

Abstract: The present invention relates to a transparent, peelable polyester film incorporating at least one biaxially oriented polyester film (=base layer (B)) and at least one peelable covering layer (A) coated offline thereon, in which the covering layer (A) is at least 85 wt. % made up of a polyester of aromatic and aliphatic dicarboxylic acids and aliphatic diols, and the arithmetic mean value of the absolute ordinate values Sb of the covering layer (A) is less than 300 nm and the reduced peak height Spk of the covering layer (A) is less than 700 nm. The invention further relates to a production process for this peelable film and use thereof as sealing film for APET and/or RPET meal trays.

Abstract: A transparent, peelable polyester film is provided with clarity greater than 80% including a biaxially oriented polyester film as base layer (B) and an offline coated heat-sealable outer layer (A) that is peelable relative to ready-meal APET or RPET trays. The heat-sealable and peelable outer layer (A) includes from 85 to 99 wt % polyester and from 1 to 15 wt % other substances, the polyester including of from 25 to 95 mol % of units derived from at least one aromatic dicarboxylic acid and from 5 to 75 mol % of units derived from at least one aliphatic dicarboxylic acid. The polyester incorporates at least 10 mol % of units derived from diols having more than 2 carbon atoms. The mass of the dry outer layer (A) is from 1 to 5 g/m2. Production processes for the foregoing film, and use thereof as scalable film for ready-meal trays is also provided.

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 white, biaxially oriented polyester film which has at least one polyester-containing base layer (B) and at least one white, matt outer layer (A), where the outer later (A) and the base layer (B) include, alongside the white pigment, other particles, preferably SiO2, which have a median diameter of from 2 to 10 ?m. The film is optionally functionalized on at least one surface. Films of this type feature in particular low weathering-resistant gloss of the outer layer (A), high whiteness, high UV protection, and high processing safety, and are therefore suitable for outdoor uses, in particular for use in roofing films.

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: A hazy polyester film with a thickness in the range from 10 to 100 ?m including thermoplastic polyester as the main constituent and barium sulfate with a particle size in the range from 0.1 to 0.5 ?m, expressed as d50, in an amount in the range from 5 to 25% by weight. The films exhibit a transparency, measured to ASTM-D 1003, of greater than 56% and a haze in the range from 40 to 95%. Owing to their particular optical properties in the form of high transparency with simultaneous scattering action in the form of volume scatter, the film is suitable particularly for use for internal and external window glazing, for interior paneling in bright rooms, for exhibition construction, in vehicles and buildings, in the lighting sector and in shopfitting and shelving.

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 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.