Abstract: 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° C.; and in that at least one surface is provided with a coupling agent.
Type:
Grant
Filed:
July 12, 2001
Date of Patent:
October 17, 2006
Assignee:
Mitsubishi Polyester Film GmbH
Inventors:
Cynthia Bennett, Gottfried Hilkert, Stefan Bartsch, Herbert Peiffer
Abstract: The invention relates to a transparent, biaxially oriented polyester film composed of at least one base layer (B) which comprises at least 80% by weight of thermoplastic polyester, and of, applied to this base layer (B), a transparent, high-gloss outer layer (A). The outer layer (A) of the invention comprises a specific pigment system which provides improved winding of the film and leads to a highly transparent film with a high-gloss surface (A). The invention further relates to a process for producing the film. The film may be used as a packaging film, in particular for metalizing or for ceramic coating, or for applications in the industrial sector, e.g. as a substrate for stamping films, and in particular to its use on high-speed packaging machinery.
Type:
Grant
Filed:
December 18, 2003
Date of Patent:
October 17, 2006
Assignee:
Mitsubishi Polyester Film GmbH
Inventors:
Herbert Peiffer, Martin Mueller-Roosen, Gottfried Hilkert
Abstract: The invention relates to a multilayer, oriented film, in which at least one layer comprises a polyester which comprises an additive which, on irradiation with electromagnetic radiation, forms metal nuclei on which further metal can be deposited in further steps of the process. The invention further relates to a process for the production of this film and to its use in printed circuit boards, ribbon cables, smart cards, RFID labels, membrane keyboards, and film-based circuits of any type.
Type:
Grant
Filed:
September 15, 2004
Date of Patent:
September 26, 2006
Assignee:
Mitsubishi Polyester Film GmbH
Inventors:
Holger Kliesch, Thorsten Kiehne, Gottfried Hilkert, Franz Hora
Abstract: The invention relates to a transparent, biaxially oriented polyester film which comprises at least 80% by weight of thermoplastic polyester and also comprises an amount in the range from 0.05 to 0.5% by weight of a specific pigment system. The invention further relates to a process for producing the film. The film can be used as a packaging film, or for metalizing or ceramic coating, and in applications in the industrial sector, as a substrate for stamping foils.
Type:
Grant
Filed:
December 18, 2003
Date of Patent:
September 26, 2006
Assignee:
Mitsubishi Polyester Film GmbH
Inventors:
Herbert Peiffer, Martin Mueller-Roosen, Gottfried Hilkert
Abstract: The invention relates to a single-layer, oriented polyester film where the polyester comprises an additive which on irradiation with electromagnetic radiation forms metal nuclei on which further metal can be accumulated during further steps of the process. The invention further relates to a process for producing this film and to its use in printed circuit boards, ribbon cables, smart cards, RFID labels, membrane keyboards, and film-based circuits, of any type.
Type:
Grant
Filed:
September 15, 2004
Date of Patent:
September 12, 2006
Assignee:
Mitsubishi Polyester Film GmbH
Inventors:
Holger Kliesch, Thorsten Kiehne, Gottfried Hilkert, Bodo Kuhmann
Abstract: White, biaxially oriented polyester films which have a base layer B which comprises a thermoplastic polyester such as polyethylene terephthalate, and which comprise substantially only TiO2 as a white pigment, whose R value is less than 43 daN/mm2, whose emax ratio is less than 2.5 and at least one of whose two surfaces of the film has been provided with an acrylate-containing coating, are particularly tear-resistant and do not tend to delamination and are therefore suitable in particular as lid films for food containers, for example yoghurt cups. A process is described for producing the films.
Type:
Grant
Filed:
October 10, 2003
Date of Patent:
September 5, 2006
Assignee:
Mitsubishi Polyester Film GmbH
Inventors:
Thorsten Kiehne, Herbert Peiffer, Bodo Kuhmann
Abstract: The invention relates to a multilayer, transparent, biaxially oriented polyester film having at least one base layer B composed of a thermoplastic polyester, at least one overlayer A coextruded on the base layer B and at least one acrylic coating D which is applied to the film as an aqueous dispersion. The invention further relates to a process for producing the film and to its use.
Abstract: The present invention relates to an opaque, white UV-stabilized low-flammability film with a thickness of from 10 to 500 ?m whose principal constituent is a crystallizable thermoplastic. It also comprises at least barium sulfate as pigment, at least one flame retardant, at least one UV stabilizer as light stabilizer and at least one optical brightener. The barium sulfate and/or the optical brightener and/or the flame retardant and/or the UV stabilizer here is either incorporated directly into the thermoplastic when the polymer is prepared or fed to the thermoplastic as a masterbatch during film production.
Type:
Grant
Filed:
January 22, 2001
Date of Patent:
August 15, 2006
Assignee:
Mitsubishi Polyester Film GmbH
Inventors:
Ursula Murschall, Ulrich Kern, Guenther Crass, Klaus Oberlaender
Abstract: Biaxially oriented polyester films which have a polyester-containing base layer (B) and at least one overlayer (A) which comprises poly(m-xyleneadipamide) (MXD6) feature improved optical properties such as increased gloss and very good barrier properties, in particular toward passage of oxygen, and are therefore suitable as packaging materials for foods and other consumable items.
Type:
Grant
Filed:
January 15, 2004
Date of Patent:
August 8, 2006
Assignee:
Mitsubishi Polyester Film GmbH
Inventors:
Matthias Konrad, Herbert Peiffer, Gottfried Hilkert
Abstract: The invention relates to a single- or multilayer, oriented film in which at least one layer is comprised of a thermoplastic polymer having a minimum amount of amide groups. The polymer is a polyester, a polyamide, or a mixture comprised of polyester and polyamide, or is a copolymer comprised of these two materials. The film also comprises a component a) which, when irradiated with electromagnetic or particulate radiation, forms metal nuclei onto which further metal can be accumulated in further steps of the process. The invention also relates to a process for the production of this film, and to its use in printed circuit boards, ribbon cables, smart cards, RFID labels, membrane keyboards, or film-based circuits of any type.
Type:
Grant
Filed:
January 18, 2005
Date of Patent:
August 1, 2006
Assignee:
Mitsubishi Polyester Film GmbH
Inventors:
Holger Kliesch, Thorsten Kiehne, Gottfried Hilkert, Ingo Fischer
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 a 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 polyethyleneterephthalate copolymers, and component (II) is a polymer which contains at least one sulphonate group.
Type:
Grant
Filed:
January 10, 2001
Date of Patent:
June 6, 2006
Assignee:
Mitsubishi Polyester Film GmbH
Inventors:
Ursula Murschall, Ulrich Kern, Guenther Crass, Gottfried Hilkert
Abstract: A white film whose thickness is in the range from 1 to 500 ?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 white pigment, the use of the film, and also a process for its production.
Type:
Grant
Filed:
April 24, 2002
Date of Patent:
May 16, 2006
Assignee:
Mitsubishi Polyester Film GmbH
Inventors:
Ursula Murschall, Guenther Crass, Guenter Bewer, Klaus Oberlaender
Abstract: Biaxially oriented polyester films which have a polyester-containing base layer (B) which additionally comprises poly(m-xyleneadipamide) and has been provided on at least one side with an overlayer (A) which has been coated with a barrier layer (D), said barrier layer comprising polyvinyl alcohol and a copolymer of maleic acid and acrylic acid, feature improved optical properties such as high gloss and low opacity and very good barrier properties, in particular toward the passage of oxygen, and, as a consequence of their insensitivity toward moisture, are suitable as a packaging material for foods or other consumable items.
Type:
Grant
Filed:
January 20, 2004
Date of Patent:
February 28, 2006
Assignee:
Mitsubishi Polyester Film GmbH
Inventors:
Oliver Klein, Herbert Peiffer, Gottfried Hilkert
Abstract: Biaxially oriented polyester films which have a polyester-containing base layer (B) which additionally comprises poly(m-xyleneadipamide) and which is coated on at least one side with a barrier layer (D), the barrier layer comprising polyvinyl alcohol and a copolymer of maleic acid and acrylic acid, feature improved optical properties such as high gloss and low opacity, and very good barrier properties, in particular with respect to oxygen passage, and are also suitable as packaging materials for foods or other consumable items as a consequence of their insensitivity toward moisture.
Type:
Grant
Filed:
January 20, 2004
Date of Patent:
January 31, 2006
Assignee:
Mitsubishi Polyester Film GmbH
Inventors:
Oliver Klein, Herbert Peiffer, Gottfried Hilkert
Abstract: Three-layer, highly oriented polyester films having an A-B-C layer construction, preferably made of polyethylene terephthalate, which, in addition to a base layer B, have a smooth surface layer A which contains no external particles and a rough surface layer C which contains external particles such as antiblocking agents or pigments, preferably SiO2, in defined amounts and particle sizes, feature in particular good producibility and processibility, high gloss of the film surface A and low opacity. The very smooth surface A is suitable in particular for coating with materials, for example SiOx, by means of plasma polymerization of hexamethyldisiloxane by the CVD or PECVD method, which provides the film with a high oxygen barrier and is suitable in particular as packaging for light- and air-sensitive foods or other consumable items.
Type:
Grant
Filed:
October 10, 2003
Date of Patent:
January 10, 2006
Assignee:
Mitsubishi Polyester Film GmbH
Inventors:
Bart Janssens, Herbert Peiffer, Gottfried Hilkert
Abstract: Three-layer, highly oriented polyester films having an A-B-C layer construction, preferably made of polyethylene terephthalate, which, in addition to a base layer B have a smooth surface layer A which contains no external particles and a rough surface layer C which contains external particles such as antiblocking agents or pigments, preferably SiO2, in defined amounts and particle sizes, and the surface layer A is additionally provided with an acrylate-containing layer D feature in particular good producibility and processibility, high gloss of the film surface A and low opacity. The very smooth surface A or D is suitable in particular for coating with materials, for example SiOx, by means of plasma polymerization of hexamethyldisiloxane by the CVD or PECVD method, which provides the film with a high oxygen barrier and is suitable in particular as packaging for light- and air-sensitive foods or other consumable items.
Type:
Grant
Filed:
October 10, 2003
Date of Patent:
December 13, 2005
Assignee:
Mitsubishi Polyester Film GmbH
Inventors:
Bart Janssens, Herbert Peiffer, Gottfried Hilkert
Abstract: Three-layer, highly oriented polyester films having an A-B-C layer construction, preferably made of polyethylene terephthalate, which, in addition to a base layer B have a smooth surface layer A which contains no external particles and a rough surface layer C which contains external particles such as antiblocking agents or pigments, preferably SiO2, in defined amounts and particle sizes, and the surface layer C is additionally provided with an acrylate-containing layer D feature in particular good producibility and processibility, high gloss of the film surface A and low opacity. The very smooth surface A is suitable in particular for coating with materials, for example SiOx, by means of plasma polymerization of hexamethyldisiloxane by the CVD or PECVD method, which provides the film with a high oxygen barrier and is suitable in particular as packaging for light- and air-sensitive foods or other consumable items.
Type:
Grant
Filed:
October 10, 2003
Date of Patent:
November 8, 2005
Assignee:
Mitsubishi Polyester Film GmbH
Inventors:
Bart Janssens, Herbert Peiffer, Stefan Bartsch
Abstract: 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 Tg2 value of the polyester film is above the Tg2 value of the base layer but below the Tg2 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.
Type:
Grant
Filed:
August 12, 2003
Date of Patent:
September 20, 2005
Assignee:
Mitsubishi Polyester Film GmbH
Inventors:
Herbert Peiffer, Cynthia Bennett, Guenther Crass, Gottfried Hilkert, Werner Roth
Abstract: The present invention relates to an opaque, white film with a thickness of from 10 to 500 ?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.
Type:
Grant
Filed:
May 5, 2003
Date of Patent:
September 6, 2005
Assignee:
Mitsubishi Polyester Film GmbH
Inventors:
Ursula Murschall, Ulrich Kern, Klaus Oberlaender, Gottfried Hilkert
Abstract: The present application relates to a white, biaxially oriented, flame-retardant, 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 and also comprises from 0.5 to 30% by weight of flame retardant, based in each case on the weight of the layer comprising the UV stabilizer and/or 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.
Type:
Grant
Filed:
February 12, 2001
Date of Patent:
August 30, 2005
Assignee:
Mitsubishi Polyester Film GmbH
Inventors:
Ursula Murschall, Herbert Peiffer, Gottfried Hilkert, Hans Mahl