Patents by Inventor Tobias Rentzsch

Tobias Rentzsch has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 10843447
    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.
    Type: Grant
    Filed: May 15, 2017
    Date of Patent: November 24, 2020
    Assignee: Mitsubishi Polyester Film GmbH
    Inventors: Herbert Peiffer, Bodo Kuhmann, Stefan Bartsch, Martin Jesberger, Tobias Rentzsch
  • Patent number: 10618260
    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.
    Type: Grant
    Filed: June 19, 2019
    Date of Patent: April 14, 2020
    Assignee: Mitsubishi Polyester Film GmbH
    Inventors: Herbert Peiffer, Martin Jesberger, Stefan Bartsch, Tobias Rentzsch
  • Publication number: 20200079064
    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.
    Type: Application
    Filed: September 10, 2019
    Publication date: March 12, 2020
    Inventors: Herbert PEIFFER, Martin JESBERGER, Bodo KUHMANN, Viktor FISCHER, Tobias RENTZSCH
  • Publication number: 20190389187
    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.
    Type: Application
    Filed: June 19, 2019
    Publication date: December 26, 2019
    Inventors: Herbert PEIFFER, Martin JESBERGER, Stefan BARTSCH, Tobias RENTZSCH
  • Publication number: 20190030874
    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.
    Type: Application
    Filed: July 27, 2018
    Publication date: January 31, 2019
    Inventors: Herbert PEIFFER, Stefan BARTSCH, Martin JESBERGER, Tobias RENTZSCH
  • Publication number: 20170341355
    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.
    Type: Application
    Filed: May 15, 2017
    Publication date: November 30, 2017
    Inventors: Herbert PEIFFER, Bodo KUHMANN, Stefan BARTSCH, Martin JESBERGER, Tobias RENTZSCH
  • Patent number: 5820953
    Abstract: A thermoformed plastic package with integrated predetermined breaking points formed by discrete regions in the plastic matrix at which points the mechanical properties of the plastic have been modified by action of a laser beam.
    Type: Grant
    Filed: November 15, 1993
    Date of Patent: October 13, 1998
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Ekkehard Beer, Tobias Rentzsch, Alfred Schad
  • Patent number: 5230944
    Abstract: A laminated material having a latent inherent delamination potential which contains at least one layer comprising a thermoplastic, wherein the thermoplastic carries, at least on one side, a release layer of water-soluble or water-dispersible organic material. The material can be delaminated by a process of chopping the material and treating the material with water or steam. The laminated material is useful as, for example, a packaging material. The material can easily be delaminated into its individual layers, thus facilitating recycling of the materials.
    Type: Grant
    Filed: November 4, 1991
    Date of Patent: July 27, 1993
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Ekkehard Beer, John D. Gribbin, Guenter Krause, Tobias Rentzsch