Patents by Inventor Heinrich Firgo

Heinrich Firgo 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: 11008672
    Abstract: The present invention relates to a method for the production of polysaccharide fibers which, as a fiber-forming substance, comprise a mixture of cellulose and ?(1?3)-glucan, as well as to the fibers made thereof and to their use.
    Type: Grant
    Filed: January 10, 2019
    Date of Patent: May 18, 2021
    Assignee: NUTRITION & BIOSCIENCES USA 4, INC.
    Inventors: Franz Dürnberger, Sigrid Redlinger, Christoph Schrempf, Hartmut Rüf, Heinrich Firgo, Gert Kroner
  • Patent number: 11001941
    Abstract: The present invention relates to a direct dissolving process for the production of polysaccharide fibers which contain ?(1?3)-glucan as a fiber-forming substance, with aqueous sodium hydroxide solution as a solvent, as well as to the fibers made thereby, and to their use.
    Type: Grant
    Filed: July 18, 2018
    Date of Patent: May 11, 2021
    Assignee: NUTRITION & BIOSCIENCES USA 4, INC.
    Inventors: Gregor Kraft, Gert Kroner, Thomas Röder, Heinrich Firgo
  • Patent number: 10995427
    Abstract: The present invention relates to a method for the production of polysaccharide fibers having increased fibrillation tendency, which, as a fiber-forming substance, comprise a mixture of cellulose and ?(1?3)-glucan, as well as to the fibers made thereof and to their use.
    Type: Grant
    Filed: June 13, 2018
    Date of Patent: May 4, 2021
    Assignee: NUTRITION & BIOSCIENCES USA 4, INC.
    Inventors: Franz Dürnberger, Sigrid Redlinger, Christoph Schrempf, Hartmut Rüf, Heinrich Firgo, Gert Kroner
  • Publication number: 20210087714
    Abstract: The present invention relates to a fiber of the Lyocell type which has a titer of from 0.8 dtex to 3.3 dtex and is characterized by the following relationships: Höller factor F2?1, preferably ?2 Höller factor F1??0.6 Höller factor F2?6 and Höller factor F2 minus 4.5*Höller factor F1?1, preferably ?3. The fiber according to the invention displays a specific combination of properties with regard to the Höller factors, the flexibility and the abrasion resistance within a planar assembly. Hence, the fiber shows a behavior more similar to viscose and can be processed in the textile chain according to viscose standard methods.
    Type: Application
    Filed: December 3, 2020
    Publication date: March 25, 2021
    Inventors: Christoph Schrempf, Kurt Christian Schuster, Hartmut Rüf, Heinrich Firgo, Karl Michael Hainbucher
  • Patent number: 10883196
    Abstract: The present invention relates to a fiber of the Lyocell type which has a titer of from 0.8 dtex to 3.3 dtex and is characterized by the following relationships: Höller factor F2?1, preferably ?2 Höller factor F1??0.6 Höller factor F2?6 and Höller factor F2 minus 4.5*Höller factor F1?1, preferably ?3. The fiber according to the invention displays a specific combination of properties with regard to the Höller factors, the flexibility and the abrasion resistance within a planar assembly. Hence, the fiber shows a behavior more similar to viscose and can be processed in the textile chain according to viscose standard methods.
    Type: Grant
    Filed: December 22, 2014
    Date of Patent: January 5, 2021
    Assignee: Lenzing Aktiengesellschaft
    Inventors: Christoph Schrempf, Kurt Christian Schuster, Hartmut Rüf, Heinrich Firgo, Karl Michael Hainbucher
  • Patent number: 10876226
    Abstract: The present invention relates to a method for the production of polysaccharide fibers which contain a mixture of cellulose and ?(1?3)-glucan as a fiber-forming substance, as well as to the fibers made thereby, and to their use.
    Type: Grant
    Filed: May 24, 2018
    Date of Patent: December 29, 2020
    Assignee: DUPONT INDUSTRIAL BIOSCIENCES USA, LLC
    Inventors: Thomas Röder, Gernot Kaindl, Sigrid Redlinger, Heinrich Firgo, Gert Kroner
  • Patent number: 10876225
    Abstract: The present invention relates to a method for the production of polysaccharide fibers which contain ?(1?3)-glucan as a fiber-forming substance, as well as to the fibers made thereby, and to their use.
    Type: Grant
    Filed: May 15, 2018
    Date of Patent: December 29, 2020
    Assignee: DUPONT INDUSTRIAL BIOSCIENCES USA, LLC
    Inventors: Gregor Kraft, Gert Kroner, Thomas Röder, Heinrich Firgo
  • Publication number: 20200340143
    Abstract: A process for the production of an oxidized polymer from a tetrakis hydroxyalkyl phosphonium compound comprising NH3 or at least one nitrogen compound comprising at least one NH2 or at least two NH groups, or NH3, comprising the steps of: (a) reacting at least one tetrakis hydroxyalkyl phosphonium compound with NH3 or at least one nitrogen compound in order to obtain a precondensate, wherein the molar ratio of the tetrakis hydroxyakyl phosphonium compound to the nitrogen compound is in the range of 1:(0.05 to 2.0), preferably in the range of 1:(0.5 to 1.5), particularly preferably in the range of 1:(0.65 to 1.
    Type: Application
    Filed: October 25, 2018
    Publication date: October 29, 2020
    Inventors: Heinrich Firgo, Clemens Bisjak
  • Patent number: 10612191
    Abstract: The present invention relates to the preparation of a cellulose suspension, particularly of a premixture for the preparation of a cellulose suspension in organic solvents such as an aqueous N-methylmorpholine N-oxide (NMMO) solution.
    Type: Grant
    Filed: February 15, 2013
    Date of Patent: April 7, 2020
    Assignee: Lenzing Aktiengesellschaft
    Inventors: Ulrich Möderl, Christoph Schrempf, Heinrich Firgo
  • Publication number: 20190186049
    Abstract: The present invention relates to a method for the production of polysaccharide fibers which, as a fiber-forming substance, comprise a mixture of cellulose and ?(1?3)-glucan, as well as to the fibers made thereof and to their use.
    Type: Application
    Filed: January 10, 2019
    Publication date: June 20, 2019
    Inventors: Franz Dürnberger, Sigrid Redlinger, Christoph Schrempf, Hartmut Rüf, Heinrich Firgo, Gert Kroner
  • Patent number: 10220111
    Abstract: The present invention relates to a method for the production of highly absorbent polysaccharide fibers which contain a mixture of cellulose and ?(1?3)-glucan as a fiber-forming substance, as well as to the highly absorbent fibers made thereby, and to their use.
    Type: Grant
    Filed: June 13, 2014
    Date of Patent: March 5, 2019
    Assignee: LENZING AKTIENGESELLSCHAFT
    Inventors: Thomas Röder, Gernot Kaindl, Sigrid Redlinger, Heinrich Firgo, Gert Kroner
  • Patent number: 10221502
    Abstract: The present invention relates to a method for the production of polysaccharide fibers which, as a fiber-forming substance, comprise a mixture of cellulose and ?(1?3)-glucan, as well as to the fibers made thereof and to their use.
    Type: Grant
    Filed: April 4, 2014
    Date of Patent: March 5, 2019
    Assignee: LENZING AKTIENGESELLSCHAFT
    Inventors: Franz Dürnberger, Sigrid Redlinger, Christoph Schrempf, Hartmut Rüf, Heinrich Firgo, Gert Kroner
  • Patent number: 10196758
    Abstract: The present invention relates to a direct dissolving process for the production of polysaccharide fibers which contain ?(1?3)-glucan as a fiber-forming substance, with aqueous sodium hydroxide solution as a solvent, as well as to the fibers made thereby, and to their use.
    Type: Grant
    Filed: June 13, 2014
    Date of Patent: February 5, 2019
    Assignee: LENZING AKTIENGESELLSCHAFT
    Inventors: Gregor Kraft, Gert Kroner, Thomas Röder, Heinrich Firgo
  • Publication number: 20180355518
    Abstract: The present invention relates to a method for the production of polysaccharide fibers having increased fibrillation tendency, which, as a fiber-forming substance, comprise a mixture of cellulose and ?(1?3)-glucan, as well as to the fibers made thereof and to their use.
    Type: Application
    Filed: June 13, 2018
    Publication date: December 13, 2018
    Inventors: Franz Dürnberger, Sigrid Redlinger, Christoph Schrempf, Hartmut Rüf, Heinrich Firgo, Gert Kroner
  • Publication number: 20180340270
    Abstract: The present invention relates to a method for the production of polysaccharide fibers which contain a mixture of cellulose and ?(1?3)-glucan as a fiber-forming substance, as well as to the fibers made thereby, and to their use.
    Type: Application
    Filed: May 24, 2018
    Publication date: November 29, 2018
    Inventors: Thomas Röder, Gernot Kaindl, Sigrid Redlinger, Heinrich Firgo, Gert Kroner
  • Publication number: 20180320291
    Abstract: The present invention relates to a direct dissolving process for the production of polysaccharide fibers which contain ?(1?3)-glucan as a fiber-forming substance, with aqueous sodium hydroxide solution as a solvent, as well as to the fibers made thereby, and to their use.
    Type: Application
    Filed: July 18, 2018
    Publication date: November 8, 2018
    Inventors: Gregor Kraft, Gert Kroner, Thomas Röder, Heinrich Firgo
  • Publication number: 20180258375
    Abstract: The present invention relates to the use of a lyocell fiber in a product comprising a non-woven substrate and a liquid containing a compound with a quaternary ammonium salt, wherein said lyocell fiber is contained in said non-woven substrate, and wherein said lyocell fiber contains an essentially water-insoluble salt incorporated in said fiber.
    Type: Application
    Filed: September 13, 2016
    Publication date: September 13, 2018
    Inventors: Martina OPIETNIK, Gisela GOLDHALM, Heinrich FIRGO
  • Publication number: 20180258557
    Abstract: The present invention relates to a method for the production of polysaccharide fibers which contain ?(1?3)-glucan as a fiber-forming substance, as well as to the fibers made thereby, and to their use.
    Type: Application
    Filed: May 15, 2018
    Publication date: September 13, 2018
    Inventors: Gregor Kraft, Gert Kroner, Thomas Röder, Heinrich Firgo
  • Patent number: 10030323
    Abstract: The present invention relates to a method for the production of polysaccharide fibers having increased fibrillation tendency, which, as a fiber-forming substance, comprise a mixture of cellulose and ?(1?3)-glucan, as well as to the fibers made thereof and to their use.
    Type: Grant
    Filed: April 4, 2014
    Date of Patent: July 24, 2018
    Assignee: Lenzing Aktiengesellschaft
    Inventors: Franz Dürnberger, Sigrid Redlinger, Christoph Schrempf, Hartmut Rüf, Heinrich Firgo, Gert Kroner
  • Publication number: 20180023216
    Abstract: The invention relates to a molded cellulose body which includes a functional substance having low impregnation efficiency, to the use thereof and to a method for introducing functional substances of low impregnation efficiency into a molded cellulose body during its production and after the molding step.
    Type: Application
    Filed: October 4, 2017
    Publication date: January 25, 2018
    Inventors: Kurt Christian Schuster, Mohammad Abu Rous, Karl Michael Hainbucher, Doris Richardt, Sigrid Redlinger, Heinrich Firgo, Gert Kroner