Patents by Inventor Joachim Laatsch

Joachim Laatsch 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).

  • Electrically conductive steel-ceramic composite and process to manufacture it
    Patent number: 8349395
    Abstract: The invention relates to a electrically conductive steel-ceramic connection comprising a steel interconnector and an electrically conductive ceramic joining layer arranged thereon. The interconnector comprises a ferritic steel containing Cr in a quantity ranging from 18 to 24% by weight. The ceramic layer contains perovskite of a formula Ln1-xSrxMn1-yCoyO3-? or Ln1-xSrxFe1-yCoyO3-?, wherein 0.1?x?0.4, 0.1?y?0.6, 0???x/2 and Ln=La—Lu. The inventive steel-ceramic connection is usable for a high-temperature fuel cell and regularly exhibits good adhesive properties and a low transition resistance (initial transition resistance R approximately equal to 0.01 ?cm2). Said steel-ceramic connection makes it possible to advantageously introduce a ferritic steel into high-temperature fuel cells. The inventive method for producing said steel-ceramic connection consists in pre-treating an inserted ceramic powder exhibiting good sinterability during an assembly process and during the fuel cell operation.
    Type: Grant
    Filed: March 16, 2005
    Date of Patent: January 8, 2013
    Assignees: Forschungszentrum Jülich GmbH, Topsoe Fuel Cell A/S
    Inventors: Joachim Laatsch, Frank Tietz, Niels Christiansen, Petru Gordes, Gijsbertus Rietveld, Nicolaas J. J. Dekker
  • PMMA moulding compounds with improved impact resistance
    Patent number: 7605193
    Abstract: The invention describes a novel impact modifier, built up from core-shell1- and shell 2, the core being capable of plastic deformation. Good mechanical properties were achieved using a small amount of impact modifier.
    Type: Grant
    Filed: November 22, 2006
    Date of Patent: October 20, 2009
    Assignee: Roehm GmbH & Co. KG
    Inventors: Klaus Schultes, Thomas Suefke, Reiner Mueller, Thomas Arndt, Goerg Michler, Joachim Laatsch
  • Electrically conductive steel-ceramic composite and process to manufacture it
    Publication number: 20070178004
    Abstract: The invention relates to a electrically conductive steel-ceramic connection comprising a steel interconnector and an electrically conductive ceramic joining layer arranged thereon. The interconnector comprises a ferritic steel containing Cr in a quantity ranging from 18 to 24% by weight. The ceramic layer contains perovskite of a formula Ln1-xSrxMn1-yCoyO3-? or Ln1-xSrxFe1-yCOyO3-?, wherein 0.1?x?0.4, 0.1?y?0.6, 0???x/2 and Ln=La—Lu. The inventive steel-ceramic connection is usable for a high-temperature fuel cell and regularly exhibits good adhesive properties and a low transition resistance (initial transition resistance R approximately equal to 0.01 ?cm2). Said steel-ceramic connection makes it possible to advantageously introduce a ferritic steel into high-temperature fuel cells. The inventive method for producing said steel-ceramic connection consists in pre-treating an inserted ceramic powder exhibiting good sinterability during an assembly process and during the fuel cell operation.
    Type: Application
    Filed: March 16, 2005
    Publication date: August 2, 2007
    Inventors: Joachim Laatsch, Frank Tietz, Niels Christiansen, Petru Gordes, Gijsbertus Rietveld, Nicolaas Dekker
  • PMMA MOULDING COMPOUNDS WITH IMPROVED IMPACT RESISTANCE
    Publication number: 20070123610
    Abstract: The invention describes a novel impact modifier, built up from core-shell1- and shell 2, the core being capable of plastic deformation. Good mechanical properties were achieved using a small amount of impact modifier.
    Type: Application
    Filed: November 22, 2006
    Publication date: May 31, 2007
    Applicant: ROEHM GMBH & CO. KG
    Inventors: Klaus Schultes, Thomas Suefke, Reiner Mueller, Thomas Arndt, Goerg Michler, Joachim Laatsch
  • PMMA moulding compounds with improved impact resistance
    Patent number: 7179852
    Abstract: The invention relates to a novel impact-resistance modifier, constructed from a core-shell 1 and a shell 2, whereby the core is plastically deformable. The invention is characterised by excellent mechanical properties obtained by a low content of impact-resistance modifier.
    Type: Grant
    Filed: July 26, 2001
    Date of Patent: February 20, 2007
    Assignee: Roehm GmbH & Co. KG
    Inventors: Klaus Schultes, Thomas Suefke, Reiner Mueller, Thomas Arndt, Goerg Michler, Joachim Laatsch
  • Pmma moulding compounds with improved impact resistance
    Publication number: 20040030046
    Abstract: The invention relates to a novel impact-resistance modifier, constructed from a core-shell 1 and a shell 2, whereby the core is plastically deformable. The invention is characterised by excellent mechanical properties obtained by a low content of impact-resistance modifier.
    Type: Application
    Filed: August 18, 2003
    Publication date: February 12, 2004
    Inventors: Klaus Schultes, Thomas Suefke, Reiner Mueller, Thomas Arndt, Goerg Michler, Joachim Laatsch