Patents by Inventor Britta Konrad

Britta Konrad 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: 7316843
    Abstract: A melt-spun synthetic fiber and process for producing the fiber are described, the fiber including a fiber-forming synthetic polymer and a siloxane-based polyamide with a repeating unit having the formula (I) wherein n is a number in the range of 1-500 inclusive and specifics the number of repeating units of the siloxane-based polyamide, DP is the average degree of polymerization of the siloxane component of the siloxane-based polyamide and is in the range of 1-700 inclusive, X is selected from the group consisting of linear or branched alkylene chains having 1-30 carbon atoms, Y is selected from the group consisting of linear or branched alkylene chains having 1-40 carbon atoms, and each of the R1-R4 groups is independently selected from the group consisting of methyl groups, ethyl groups, propyl groups, isopropyl groups, siloxane chains, phenyl groups, and phenyl groups that have been substituted with 1-3 members selected from the group consisting of methyl groups and ethyl groups.
    Type: Grant
    Filed: May 17, 2004
    Date of Patent: January 8, 2008
    Assignee: Polyamide High Performance GmbH
    Inventors: Samuel Mooney, Ralf Koehnen, Britta Konrad, Qiao Xiao, Ralf Schnell
  • Publication number: 20040214962
    Abstract: A melt-spun synthetic fiber and process for producing the fiber are described, the fiber including a fiber-forming synthetic polymer and a siloxane-based polyamide with a repeating unit having the formula (I) 1
    Type: Application
    Filed: May 17, 2004
    Publication date: October 28, 2004
    Applicant: Polyamide High Performance GmbH
    Inventors: Samuel Mooney, Ralf Koehnen, Britta Konrad, Qiao Xiao, Ralf Schnell
  • Publication number: 20040191512
    Abstract: A melt-spun synthetic fiber and process for producing the fiber are described, the fiber including a fiber-forming synthetic polymer and a siloxane-based polyamide with a repeating unit having the formula (I) 1
    Type: Application
    Filed: March 27, 2003
    Publication date: September 30, 2004
    Inventors: Samuel Mooney, Ralf Koehnen, Britta Konrad, Xiao Qiao, Ralf Schnell
  • Patent number: 6787227
    Abstract: A yarn containing filaments made from synthetic polymers has a cross-section having at least 5 vertices, a titer of 1 to 7 dtex and a tenacity of at least 60 cN/tex. The filaments of the yarn preferably have a cross-section having 5 to 8 vertices, possibly with indentations between the vertices. The cross-section of the filaments is preferably star-shaped. The yarn preferably has a tenacity of 60 to 85 cN/tex, an elongation at break of 15% to 35%, a hot-air shrinkage of 4% to 10% and a stretch recovery of 250 to 400 cN/tex. The yarn is excellently suited for use in the manufacture of industrial fabrics, particularly airbag fabrics.
    Type: Grant
    Filed: April 24, 2003
    Date of Patent: September 7, 2004
    Assignee: Polyamide High Performace GmbH
    Inventors: Ralf Koehnen, Frank Leymann, Britta Konrad, Gerhard Berberich, Hans Albert Graefe, Andreas Tulke, Qiao Xiao
  • Publication number: 20030211319
    Abstract: A yarn containing filaments made from synthetic polymers has a cross-section having at least 5 vertices, a titer of 1 to 7 dtex and a tenacity of at least 60 cN/tex. The filaments of the yarn preferably have a cross-section having 5 to 8 vertices, possibly with indentations between the vertices. The cross-section of the filaments is preferably star-shaped. The yarn preferably has a tenacity of 60 to 85 cN/tex, an elongation at break of 15% to 35%, a hot-air shrinkage of 4% to 10% and a stretch recovery of 250 to 400 cN/tex. The yarn is excellently suited for use in the manufacture of industrial fabrics, particularly airbag fabrics.
    Type: Application
    Filed: April 24, 2003
    Publication date: November 13, 2003
    Applicant: Acordis Industrial Fibers GmbH
    Inventors: Ralf Koehnen, Frank Leymann, Britta Konrad, Gerhard Berberich, Hans Albert Graefe, Andreas Tulke, Qiao Xiao