Patents by Inventor Jurgen Loercks

Jurgen Loercks 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).

  • Method for preparing composite materials from renewable raw materials
    Patent number: 6479164
    Abstract: There is provided a method for preparing composite materials from renewable raw materials wherein natural raw materials, especially in fiber form, comprising starch as binder are molded by adding water in accordance with a predetermined temperature and time profile to form boards and molded articles. The advantages of this method reside in said materials being fully biodegradable and free from harmful substances.
    Type: Grant
    Filed: April 6, 1998
    Date of Patent: November 12, 2002
    Assignee: Biotec Biologische Naturverpackungen GmbH & Co. KG
    Inventors: Jürgen Lörcks, Winfried Pommeranz, Kurt Klenke, Harald Schmidt, Joachim Heuer
  • Thermoplastic starch utilizing a biodegradable polymer as melting aid
    Patent number: 6472497
    Abstract: Thermoplastic starch compositions formed by converting native starch or starch derivatives into thermoplastic starch by at least one hydrophobic biodegradable polymer that functions as a plasticizer for starch. The hydrophobic biodegradable polymer may be a polymer selected from the following list: an aliphatic polyester, a copolyester with aliphatic and aromatic blocks, a polyester amide, a polyester urethane, a polyethylene oxide polymer and/or a polyglycol, and/or mixtures of these. When the starch, such as in particular native starch or derivatives thereof, is mixed in the melt with the hydrophobic biodegradable polymer as a plasticizer or swelling agent, to homogenize the mixture, the water content is reduced to less than about 5% by weight based on the weight of the mixture.
    Type: Grant
    Filed: April 30, 2001
    Date of Patent: October 29, 2002
    Assignee: Biotec Biologische Naturverpackungen & Co KG
    Inventors: Jurgen Loercks, Winfried Pommeranz, Harald Schmidt, Ralf Timmermann, Ernst Grigat, Wolfgang Schulz-Schlitte
  • Thermoplastic starch utilizing a biodegradable polymer as melting aid
    Publication number: 20010039303
    Abstract: Thermoplastic starch compositions formed by converting native starch or starch derivatives into thermoplastic starch by at least one hydrophobic biodegradable polymer that functions as a plasticizer for starch. The hydrophobic biodegradable polymer may be a polymer selected from the following list: an aliphatic polyester, a copolyester with aliphatic and aromatic blocks, a polyester amide, a polyester urethane, a polyethylene oxide polymer and/or a polyglycol, and/or mixtures of these. When the starch, such as in particular native starch or derivatives thereof, is mixed in the melt with the hydrophobic biodegradable polymer as a plasticizer or swelling agent, to homogenize the mixture, the water content is reduced to less than about 5% by weight based on the weight of the mixture.
    Type: Application
    Filed: April 30, 2001
    Publication date: November 8, 2001
    Inventors: Jurgen Loercks, Winfried Pommeranz, Harald Schmidt, Ralf Timmermann, Ernst Grigat, Wolfgang Schulz-Schlitte
  • Compostable adhesive
    Patent number: 6307003
    Abstract: The present invention relates to a compostable adhesive, to a method of producing the same, and to the use of the adhesive for the adhesive bonding of materials.
    Type: Grant
    Filed: March 15, 1999
    Date of Patent: October 23, 2001
    Assignees: Bayer AG, Biotec Biologische
    Inventors: Ernst Grigat, Karsten-Josef Idel, Uwe Westeppe, Wolfgang Schulz-Schlitte, Winfried Pommeranz, Jürgen Lörcks, Harald Schmidt
  • Biodegradable polymeric mixtures based on thermoplastic starch
    Patent number: 6235815
    Abstract: For converting native starch or starch derivatives into thermoplastic starch, added to the starch is at least one hydrophobic biodegradable polymer. This hydrophobic biodegradable polymer, which serves as a plasticizer or swelling agent, may be a polymer selected from the following list: an aliphatic polyester, a copolyester with aliphatic and aromatic blocks, a polyester amide, a polyester urethane, a polyethylene oxide polymer and/or a polyglycol, and/or mixtures of these. When the starch, such as in particular native starch or derivatives thereof, is mixed in the melt with the hydrophobic biodegradable polymer as a plasticizer or swelling agent, to homogenize the mixture, the water content is reduced to <1% by weight based on the weight of the mixture.
    Type: Grant
    Filed: December 18, 1998
    Date of Patent: May 22, 2001
    Assignee: Bio-tec Biologische Naturverpackungen & Co. KG
    Inventors: Jurgen Loercks, Winfried Pommeranz, Harald Schmidt, Ralf Timmermann, Ernst Grigat, Wolfgang Schulz-Schlitte