Abstract: The invention concerns transparent, flame-retardant, single layered or multilayered thermoformable films, containing a crystallizable thermoplastic material, preferably polyethyleneterephthalate, and at least one flame retarding agent as main components. Said films are characterized by good stretchability, thermoformability and good mechanical and optical properties, which makes them and the shaped bodies made from said films suitable for both inner and outer applications.

Abstract: Polyester films which comprise a stabilizer for inhibiting oxidative degradation, at least some of which has been covalently incorporated into the polymer chain of the polyester through polycondensation during formation of the polyester, have not only high resistance to oxidation but also very few surface defects and high stability during processing, and are suitable not only for use as a packaging material but for a wide variety of other technical applications.

Abstract: Invention relates to a process for producing a single-layer or multilayer film by extrusion or coextrusion, biaxial orientation, and heat setting based on crystallizable thermoplastics whose principal constituent is a crystallizable thermoplastic having a standard viscosity SV (DCA) of from 600 to 1000. The thermoplastic is mixed prior to extrusion or coextrusion with 50% by weight (based on the total weight of all thermoplastics) of a secondary thermoplastic having a standard viscosity SV (DCA) of more than 900 to 1500, the standard viscosity SV (DCA) of the two thermoplastics differing by at least 100 units. The secondary thermoplastic is a byproduct or waste product from the production of PET plastic bottles or originates from recycled PET bottles.

Abstract: The present invention relates to a white, sealable, biaxially oriented, coextruded polyester film which encompasses at least one base layer B and encompasses at least one sealable outer layer A, both made from thermoplastic polyester, where at least the base layer B comprises a polyester and a cycloolefin copolymer (COC). The invention further relates to the use of the polyester film and to a process for its production.

Abstract: The invention relates to a co-extruded, biaxially oriented polyester film consisting of a base layer and at least one outer layer. The film contains at least one flame-retardant agent, at least one UV-stabilizer and has a matt outer layer which contains a mixture and/or a blend of two components (I) and (II), whereby component (I) is substantially a polyethylene terephthalate homopolymer, or a polyethylene terephthalate copolymer, or a mixture of polyethylene terephthalate homopolymers or polyethylene terephthalate copolymers, and component (II) is a polymer containing at least one sulphonate group.

Abstract: Biaxially oriented, coextruded polyester films with a base layer at least 90% by weight of which is composed of a thermoplastic polyester, preferably polyethylene terephthalate (PET), and with at least one sealable outer layer and a second nonsealable outer layer and, if desired, with other intermediate layers, and comprising at least one UV absorber, preferably hydroxybenzotriazoles and triazines, have high UV resistance, do not embrittle when exposed to high temperatures, have a surface without undesirable haze and are suitable for numerous indoor and outdoor applications. The outer layers comprise antiblocking agents, such as silica with an average particle diameter preferably below 50 nm and/or above 2 &mgr;m, and the sealable outer layer is preferably composed of a copolyester which has been built up from ethylene terephthalate units and ethylene isophthalate units.

Abstract: The invention relates to a sealable, UV-resistant and flame-retardant, coextruded, biaxially oriented polyester film with one matt side and composed of at least one base layer B and of, applied to the two sides of this base layer, a sealable outer layer A and matt outer layer C. The film also comprises at least one light stabilizer which is a UV stabilizer, and comprises a flame retardant. The invention also includes the use of the film and a process for its production.

Abstract: The invention relates to a white, flame-resistant, UV-stable, thermoformable, oriented film made from a crystallizable thermoplastic, the thickness of which lies in the range of from 10 &mgr;m to 350 &mgr;m. Said film comprises at least one white pigment, a flame-proofing agent and a UV absorber and is characterized by good stretchability and thermoformability, by good optical and mechanical properties and an economical production. The invention further relates to a method for the production of said film and the use thereof.

Abstract: The invention relates to a multi-layered biaxially-oriented film, mainly made of a crystallizeable thermoplastic polyester and economically produceable with a high surface quality, i.e. without pinning bubbles and without electric arcing and film breaks, at production speeds of 340 m/min or higher. According to the invention the multi-layered polyester film has an average specific electrical melt resistance over its total thickness which lies within a range from 1.5×107 to 30×107 &OHgr;×cm. The invention also relates to a method of production of the film.

Abstract: The invention relates to an at least two-layer polyester film with a total thickness of from about 5 to about 200 &mgr;m which comprises polyethylene terephthalate and from about 2 to about 20% by weight—based on the weight of the entire film—of polyethylene naphthalate, and also at least one functional outer layer.

Abstract: Polyester films which comprise a stabilizer for inhibiting oxidative degradation, at least some of which has been covalently incorporated into the polymer chain of the polyester through polycondensation during formation of the polyester, have not only high resistance to oxidation but also very few surface defects and high stability during processing, and are suitable not only for use as a packaging material but for a wide variety of other technical applications.

Abstract: The invention relates to a polyester film with a thickness of from about 4 to about 23 &mgr;m, which comprises, alongside polyethylene terephthalate as main constituent, from about 2 to about 20% by weight of polyethylene naphthalate (based on the weight of the film), and has fewer than 30 pinholes per 100 m2. The invention further relates to a process for producing these films, and to the use of the films in packaging composites.

Abstract: The present invention relates to an opaque, white film with a thickness of from 10 to 500 &mgr;m whose principal constituent is a crystallizable thermoplastic. It also comprises at least barium sulfate and at least one optical brightener. The barium sulfate and/or the optical brightener here is either incorporated directly into the thermoplastic during preparation of the polymer or fed as a masterbatch during film production. The novel film is particularly suitable for interior decoration, for constructing exhibition stands, for exhibition requisites, for displays, for placards, for labels, for protective glazing of machines or of vehicles, in the lighting sector, in the fitting out of shops or of stores, as a promotional requisite or a laminating material, or in applications associated with food or drink.

Abstract: The invention relates to a raw material or masterbatch made from a thermoplastic and comprising silicon compounds, to a process for its production, and also to films produced using the polymer and having a thickness in the range from 0.5 to 1 000 &mgr;m. The polymer or masterbatch also comprises at least one stabilizer/free radical scavenger. The invention further relates to a process for producing the film.

Abstract: The invention relates to a sealable, flame-retardant, coextruded, biaxially oriented polyester film with one matt side, and composed of at least one base layer B and of, applied to the two sides of this base layer, a sealable outer layer A and a matt outer layer C. The film also comprises at least one flame retardant. The invention further relates to the use of the film and to a process for its production.

Abstract: A transparent film whose thickness is in the range from 1 to 500 &mgr;m and which comprises, as principal constituent, a crystallizable thermoplastic, wherein the film comprises at least one UV stabilizer as light stabilizer and at least one optical brightener, and to the use of the film, and also to a process for its production.

Abstract: The present application relates to a white, biaxially oriented, flame-retardant polyester film with at least one base layer which comprises, based on the weight of the base layer, from 2 to 60% by weight of a cycloolefin copolymer (COC), where the glass transition temperature of the COC is within the range from 70 to 270° C. The film also comprises from 0.5 to 30% by weight of flame retardant, based on the weight of the layer comprising the flame retardant. The film of the invention is suitable for packing foods or other consumable items which are sensitive to light and/or to air, or for use in industry, e.g. in the production of hot-stamping foils or as a label film, or for image-recording papers, printed sheets or magnetic recording cards.

Abstract: The present application relates to a white, biaxially oriented, UV-resistant polyester film with at least one base layer which comprises, based on the weight of the base layer, from 2 to 60% by weight of a cycloolefin copolymer (COC), where the glass transition temperature of the COC is within the range from 70 to 270° C. The film also comprises from 0.01 to 5.0% by weight of a UV stabilizer as light stabilizer, based on the weight of the base layer. The film of the invention is suitable for packing foods or other consumable items which are sensitive to light and/or to air, or for use in industry, e.g. in the production of hot-stamping foils or as a label film, or for image-recording papers, printed sheets or magnetic recording cards.

Abstract: The invention relates to biaxially orientated, co-extruded polyester films, which have at least one base layer that contains a thermoplastic polyester, preferably polyethylene terephthalate and approx. 2 to 60 wt.-% of a cyclo-olefin copolymer that is preferably composed of norbornene and ethylene units and which have at least one cover layer that is devoid of a COC and which optionally have additional cover or intermediate layers and can contain conventional additives such as stabilisers and anti-blocking agents. Said films are characterised in particular by a degree of whiteness>70 %, an opacity>55 % and a gloss, (at least on one<side)>100 and are therefore suitable for numerous industrial applications. During the production of the films in accordance with the co-extrusion process, up to 70 wt.-% of reclaimed product can be used, without having a noticeable negative effect on the physical properties of the film.

Abstract: The invention relates to a single- or multilayer, biaxially oriented film based on a crystallizable polyester and comprising at least one primary stabilizer for inhibiting oxidative degradation. The crystallizable polyester comprises from 100 to 10 000 ppm of primary stabilizer in covalently bonded form. The invention further relates to a process for producing the film.