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).

  • Publication number: 20160348280
    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: August 8, 2016
    Publication date: December 1, 2016
    Inventors: Kurt Christian Schuster, Mohammad Abu Rous, Karl Michael Hainbucher, Doris Richardt, Sigrid Redlinger, Heinrich Firgo, Gert Kroner
  • Publication number: 20160326671
    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 22, 2014
    Publication date: November 10, 2016
    Inventors: Christoph Schrempf, Kurt Christian Schuster, Hartmut Rüf, Heinrich Firgo, Karl Michael Hainbucher
  • Publication number: 20160177471
    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: June 13, 2014
    Publication date: June 23, 2016
    Applicant: Lenzing AG
    Inventors: Gregor Kraft, Gert Kroner, Thomas Röder, Heinrich Firgo
  • Publication number: 20160144065
    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: Application
    Filed: June 13, 2014
    Publication date: May 26, 2016
    Inventors: Thomas Röder, Gernot Kaindl, Sigrid Redlinger, Heinrich Firgo, Gert Kroner
  • Publication number: 20160138196
    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: June 13, 2014
    Publication date: May 19, 2016
    Inventors: Thomas Röder, Gernot Kaindl, Sigrid Redlinger, Heinrich Firgo, Gert Kroner
  • Publication number: 20160138195
    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: June 13, 2014
    Publication date: May 19, 2016
    Inventors: Gregor Kraft, Gert Kroner, Thomas Röder, Heinrich Firgo
  • Publication number: 20160060792
    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: April 4, 2014
    Publication date: March 3, 2016
    Applicant: LENZING AT
    Inventors: Franz Dürnberger, Sigrid Redlinger, Christoph Schrempf, Hartmut Rüf, Heinrich Firgo, Gert Kroner
  • Publication number: 20160053406
    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: April 4, 2014
    Publication date: February 25, 2016
    Applicant: LENZING AG
    Inventors: Franz Dürnberger, Sigrid Redlinger, Christoph Schrempf, Hartmut Rüf, Heinrich Firgo, Gert Kroner
  • Publication number: 20150007952
    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: Application
    Filed: February 15, 2013
    Publication date: January 8, 2015
    Inventors: Ulrich Möderl, Christoph Schrempf, Heinrich Firgo
  • Publication number: 20140318415
    Abstract: The present invention relates to cellulosic particles, a suspension of cellulosic particles and a process for the production of a suspension of cellulosic particles, whereby the cellulosic material is never dried between the dissolution of the cellulose and the disintegration of the suspended cellulose fibers.
    Type: Application
    Filed: July 8, 2014
    Publication date: October 30, 2014
    Applicant: LENZING AG
    Inventors: Josef Innerlohinger, Heinrich Firgo, Helmut Schkorwaga
  • Patent number: 8827192
    Abstract: The present invention relates to cellulosic particles, a suspension of cellulosic particles and a process for the production of a suspension of cellulosic particles, whereby the cellulosic material is never dried between the dissolution of the cellulose and the disintegration of the suspended cellulose fibers.
    Type: Grant
    Filed: September 12, 2008
    Date of Patent: September 9, 2014
    Assignee: Lenzing Aktiengesellschaft
    Inventors: Josef Innerlohinger, Heinrich Firgo, Helmut Schkorwaga
  • Patent number: 8633120
    Abstract: The invention concerns a Lyocell fiber, containing a material selected from the group consisting of pearl powder, ground nacre and mixtures thereof. For the manufacture of the fiber according to the invention, a process is used comprising the steps of manufacturing a spinning solution of cellulose in an aqueous tertiary amine oxide, preferably N-methylmorpholine-N-oxide (NMMO) spinning the spinning solution to fibers, and being characterized in that a material selected from the group consisting of pearl powder, ground nacre and mixtures thereof is admixed to the spinning solution and/or to a precursor thereof.
    Type: Grant
    Filed: September 15, 2008
    Date of Patent: January 21, 2014
    Assignee: Lenzing Aktiengesellschaft
    Inventors: Heinrich Firgo, Heidrun Fuchs
  • Publication number: 20130295151
    Abstract: The present invention relates to a process for the treatment of a cellulosic molded body, wherein the molded body is contacted with an acid solution of a chitosan. The process according to the invention is characterized in that the chitosan has a deacetylation degree of at least 80%, a nitrogen content of at least 7 w %, preferably at least 7.5 w %, a weight average molecular weight Mw (D) of 10 kDa to 1000 kDa, preferably 10 kDa to 160 kDa, and a viscosity in 1 w % solution in 1 w % acetic acid at 25° C. of 1000 mPas or less, preferably 400 mPas or less, in particular preferably 200 mPas or less.
    Type: Application
    Filed: August 27, 2009
    Publication date: November 7, 2013
    Applicant: Lenzing Aktiengesellschaft
    Inventors: Sigrid Redlinger, Werner Richardt, Heinrich Firgo
  • Patent number: 8367203
    Abstract: The present invention relates to a cellulosic molded body containing a cellulose/clay nanocomposite, wherein the clay component of said nanocomposite comprises a material selected from the group consisting of unmodified hectorite clays and hydrophilically modified hectorite clays.
    Type: Grant
    Filed: August 17, 2006
    Date of Patent: February 5, 2013
    Assignee: Lenzing Aktiengesellschaft
    Inventors: Harmut Rüf, Heinrich Firgo, Gert Kroner
  • Publication number: 20120318169
    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: December 15, 2010
    Publication date: December 20, 2012
    Applicant: Lenzing Aktiegesellschaft
    Inventors: Kurt Christian Schuster, Mohammad Abu Rous, Karl Michael Hainbucher, Doris Richardt, Sigrid Redlinger, Heinrich Firgo, Gert Kroner
  • Patent number: 8127575
    Abstract: A moisture wicking fabric has one side comprised substantially entirely of inherently hydrophobic fibers such as polyester or polypropylene and the other side comprised of a mixture of hydrophobic fibers such as polyester or polypropylene and hydrophilic fibers, particularly cellulosic fibers such as cotton, lyocell and viscose rayon. A garment can be formed from such a moisture wicking fabric, for example by the whole garment knitting method, the side comprised of the mixture of fibers being the external side of the garment.
    Type: Grant
    Filed: September 22, 2006
    Date of Patent: March 6, 2012
    Assignee: Lenzing Aktiengesellschaft
    Inventors: Thomas Richard Burrow, Heinrich Firgo
  • Publication number: 20110212150
    Abstract: The present invention relates to a process for the treatment of a cellulosic molded body, wherein the molded body is contacted with an acid solution of a chitosan. The process according to the invention is characterized in that the chitosan has a deacetylation degree of at least 80%, a nitrogen content of at least 7 w %, preferably at least 7.5 w %, a weight average molecular weight Mw (D) of 10 kDa to 1000 kDa, preferably 10 kDa to 160 kDa, and a viscosity in 1 w % solution in 1 w % acetic acid at 25° C. of 1000 mPas or less, preferably 400 mPas or less, in particular preferably 200 mPas or less.
    Type: Application
    Filed: August 27, 2009
    Publication date: September 1, 2011
    Applicant: LENZING AKTIENGESELLSCHAFT
    Inventors: Sigrid Redlinger, Werner Richardt, Heinrich Firgo
  • Publication number: 20110200783
    Abstract: The present invention relates to the use of a multilobal cellulosic staple fiber as a filling fiber. Furthermore, the invention relates to a cellulosic staple fiber which is characterized in that the cross-section of the fiber has three or more lobes the titer of the fiber is 1.0 to 30 dtex, preferably more than 3.0 dtex, especially more than 5.0 dtex, preferably 5.6 to 10 dtex, especially preferred more than 6.0 dtex, especially 6.3 to 10 dtex the wet modulus of the fiber fulfils the following formula: Wet modulus (cN/tex)?0.5*?IT wherein T is the titer of the fiber in dtex the breaking strength of the fiber in the conditioned state fulfils the following formula: Breaking Strength (cNitex)?1.3*?T+2*T wherein T is the titer of the fiber in dtex.
    Type: Application
    Filed: April 27, 2011
    Publication date: August 18, 2011
    Applicant: LENZING AKTIENGESELLSCHAFT
    Inventors: Gert Kroner, Heinrich Firgo, Johann Manner, Peter Sulek, Hans-Herbert Sulek
  • Publication number: 20110028608
    Abstract: The present invention relates to cellulosic particles, a suspension of cellulosic particles and a process for the production of a suspension of cellulosic particles, whereby the cellulosic material is never dried between the dissolution of the cellulose and the disintegration of the suspended cellulose fibers.
    Type: Application
    Filed: September 12, 2008
    Publication date: February 3, 2011
    Applicant: Lenzing AG
    Inventors: Josef Innerlohinger, Heinrich Firgo, Helmut Schkorwaga
  • Publication number: 20100289177
    Abstract: The present invention relates to a process for the production of cellulosic moulded bodies according to the amine-oxide process, comprising the following steps: moulding a solution of cellulose in an aqueous tertiary amine oxide precipitating the moulded solution washing the moulded body thus obtained and drying the moulded body. The process according to the invention is characterized in that a chitosonium polymer is added to the solution of the cellulose and/or to a precursor of said solution and/or the moulded body is treated with a chitosonium polymer prior to drying, with the chitosonium polymer being essentially completely soluble in a standard dope.
    Type: Application
    Filed: June 17, 2010
    Publication date: November 18, 2010
    Inventors: Sigrid Redlinger, Gerhard Reiter, Heinrich Firgo