Mitsubishi Polyester Film Gmbh

Hoechst Aktiengesellschaft

Hoechst Celanese Corporation

Hoechst Diafoil Gmbh

Cynthia Bennett

Herbert Peiffer

Gottfried Hilkert

Bodo Kuhmann

Werner Roth

Holger Kliesch

Guenther Crass

Frank Osan

Michael-Joachim Brekner

Matthias Konrad

Martin Jesberger

Otto Herrmann-Schoenherr

John A Flint

Ingo Fischer

E-Won Choe

Ursula Murschall

Ulrich Kern

Jochen Coutandin

Stefan Bartsch

Andreas Stopp

Rainer Kurz

Franz Hora

Friedrich Herold

Annegrete Bursch

Claudia Lohre

Werner Bruckner

Yavuz Ünker

Jutta Cardinal

Paul Broemmel

Thomas Hackl

Petr Kolar

Thiemo Herbst

Ulrich Schaller

Stefanie Bauer

Gunther Keil

Karsten Fritsch

Bennett Clayton Ward

David Ehrhardt

Herbert Pfeiffer

Dirk Bröder

Holgar Kliesch

Kazuo 1-21-7 Aobadai Aoba-Ku Tano

The invention relates to a multilayer biaxially oriented polyester film comprising a base layer B, an amorphous outer layer A and a further outer layer C, where this polyester film is suitable for lamination with metal sheets. The invention in particular relates to a polyester film which comprises (based on the mass of polyester) from 2 to 15% by weight of isophthalate-derived units in the base layer and which comprises more than 19% by weight of isophthalate-derived units in the amorphous layer A, and which has a silane-based coating on the outer layer A. The invention further relates to a process for the production of these films.

Biaxially oriented polyester film for metal lamination

Film bags or film tubes formed from biaxially oriented film including less than 10 ppm of antimony and having a haze of less than 10% are provided. The films have an ultimate tensile strength of more than 100 N/mm; have a difference in the ultimate tensile strength in MD and TD of less than 180 N/mm; have a tensile strain at break of more than 50%; a tensile strain at break of more than 260%; have a yellowness index b* of less than 2.5; have a lightness L*&#x3e;85; include from 50 to 15 000 ppm of free-radical scavenger; have an SV of at least 600 after ovening; have a tensile strain at break of &#x3e;5% after ovening; have a film thickness of from 6 to 26 &#x3bc;m; and include more than 90% by weight of polyester.

Use of an antimony-free polyester film for producing film bags and film tubes with high heat resistance

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.

Multilayer, white, laser-cuttable and laser-inscribable polyester film

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.

Multilayer, white, laser-cuttable polyester film

The present invention is directed to a biaxially oriented, heat-set, at least two-layer coextruded film formed from polyethylene terephthalate (PET) or polyethylene 2,6-naphthalate (PEN) that optionally includes additional comonomer-derived units. The film includes a base layer and at least one outer layer. The base layer includes a white pigment and a laser absorber which has been coated with a carbonizing polymer.

Laser-markable film

The invention more particularly relates to a coextruded, transparent, biaxially oriented polyester film comprising a base layer (B) and a heatsealable top layer (A) which is peelable from at least APET, the heatsealable and peelable top layer (A) consisting of

Coextruded, hot-sealable and peelable polyester film having low peeling resistance, process for its production and its use

This invention relates to a coextruded, transparent, biaxially oriented polyester film comprising a base layer (B) and a heatsealable top layer (A) which is peelable with respect to at least CPET. The heatsealable and peelable top layer (A) consists of The invention further relates to a process for producing the film and to its use.

Coextruded, hot-sealable and peelable polyester film, process for its production and its use

The invention relates to an opaque, biaxially oriented polyester film comprising at least one base layer, characterized in that at least this base layer contains a cyclic olefin copolymer (COC) in a concnetration of 2 to 60 wt. % in relation to the base layer, the glass transition temperature of said cyclic olefin copolymer (COC) being 70 to 270&#xb0; C.; and in that at least one surface is provided with a coupling agent.

Opaque polyester film containing a cyclic olefin copolymer (COC) with good surface attachment, method for producing the same and use thereof

The application discloses a transparent, biaxially oriented polyester film having a base layer at least 80% by weight of which is composed of a thermoplastic polyester, and having at least one outer layer, wherein the outer layer is composed of a polymer, or of a mixture of polymers, which comprises at least 40% by weight of ethylene 2,6-naphthalate units and up to 40% by weight of ethylene terephthalate units and/or units from cycloaliphatic or aromatic diols and/or dicarboxylic acids, with the proviso that the T2 value of the polyester film is above the T2 value of the base layer but below the T2 value of the outer layer, and at least one film surface has a surface tension of from 35 to 65 mN/m and/or has been provided with a functional coating of thickness from 5 to 100 nm. The film has low atmospheric oxygen transmission. It is particularly suitable for packaging uses, specifically for packaging foods and other consumable items, and for laminating, metallizing and printing.

Transparent polyester film with high oxygen barrier and additional functionality, its use and process for its production

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 cycloolefin 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 characterized in particular by a degree of whiteness&#x3e;70%, an opacity&#x3e;55% and a gloss, (at least on one side)&#x3e;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.

White, high-gloss, polyester film containing cyclo-olefin copolymers (COC), a method for the production thereof and the use of the same

The application discloses a transparent, biaxially oriented polyester film having a base layer at least 80% by weight of which is composed of a thermoplastic polyester, and having at least one outer layer, wherein the outer layer is composed of a polymer or a mixture of polymers which comprises at least 40% by weight of ethylene 2,6-naphthalate units and up to 60% by weight of ethylene terephthalate units and/or units from cycloaliphatic or aromatic diols and/or dicarboxylic acids, with the proviso that the T 2 value of the polyester film is above the T 2 value of the base layer but below the T 2 value of the outer layer, where the base layer comprises particles and the R value of at least one surface is between 1 and 1000. The film has low gas transmission. It is particularly suitable for packaging uses, specifically for packaging foodstuffs and other consumable items, or as magnetic tape film and as capacitor film.

Polyester film with surface topography matched to the intended use, the use of the film and process for its production

The application discloses a transparent, biaxially oriented polyester film having a base layer at least 80% by weight of which is composed of a thermoplastic polyester, and having at least one outer layer, wherein the outer layer is composed of a polymer or a mixture of polymers which comprises at least 40% by weight of ethylene 2,6-naphthalate units and up to 60% by weight of ethylene terephthalate units and/or units from aliphatic, cycloaliphatic, or aromatic diols and/or dicarboxylic acids, with the proviso that the base layer has a diethylene glycol content in the range from 0.9 to 3.0% by weight.

Polyester film with a high oxygen barrier, the use of the film and process for its production

A biaxially oriented polyester film is disclosed which has a base layer of at least 80% by weight of a thermoplastic polyester, and which has a cover layer and, located on the cover layer, a layer functioning as an O barrier, wherein said cover layer is composed of a polymer or of a mixture of polymers which comprises at least 40% by weight of ethylene 2,6-naphthalate units; 0% up to 40% by weight of ethylene terephthalate units; and, if desired, up to 60% by weight of units from other aliphatic, cycloaliphatic or aromatic diols and/or aliphatic, cycloaliphatic or aromatic dicarboxylic acids; with the proviso that the T 2 value of the polyester film is above the T 2 value of the base layer but below the T 2 value of the cover layer. The film has particularly low atmospheric oxygen transmission and has high gloss. It is particularly suitable for packaging light- and air-sensitive foodstuffs and other light- and air-sensitive consumable items, and also for producing insulating materials.

Biaxially oriented polyester film with high oxygen barrier, its use, and process for its production

The application discloses the use of a transparent, biaxially oriented polyester film having a base layer at least 80% by weight of which is composed of a thermoplastic polyester, and having at least one outer layer, where the outer layer is composed of a polymer or of a mixture of polymers which comprises at least 40% by weight of ethylene 2,6-naphthalate units and up to 60% by weight of ethylene terephthalate units and/or units from cycloaliphatic or aromatic diols and/or dicarboxylic acids, with the proviso that the T 2 value of the polymer film is above the T 2 value of the base layer but below the T 2 value of the outer layer, has a barrier film with respect to the gases H O, N , CO , He and flavors. It is particularly suitable for packaging applications, specifically for packaging foods and other consumable items.

Use of a transparent polyester film as a gas/flavor barrier film

The application discloses a sealable biaxially oriented polyester film having a base layer B at least 80% by weight of which is composed of a thermoplastic polyester, and having two outer layers A and C, wherein the outer layer A is composed of a polymer or of a mixture of polymers which comprises at least 40% by weight of ethylene 2,6-naphthalate units and up to 60% by weight of ethylene terephthalate units and/or units from cycloaliphatic or aromatic diols and/or dicarboxylic acids, and the opposite outer layer C is sealable and has a sealing initialization temperature of from about 100 to 200&deg; C. The film has low atmospheric oxygen transmission. It is particularly suitable for packaging applications, specifically for packaging foods and other consumable items.

Sealable polyester film with high oxygen barrier, its use and process for its production

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Alzey, Germany

Cynthia Bennett