Patents Assigned to Ticona GmbH
  • Filter material and process for producing No.sub.2 -free gases or liquids
    Patent number: 5846297
    Abstract: Polyarylene ethers are employed as filter material for removing NO.sub.2 from gases and liquids. In the presence of an oxidizing agent having a redox potential of at least 0.96 V SHE, NO can also be removed. The filter material is used to produce NO.sub.2 -free gases, for example in the medical sector.
    Type: Grant
    Filed: June 30, 1997
    Date of Patent: December 8, 1998
    Assignee: Ticona GmbH
    Inventors: Andreas Schleicher, Georg Frank, Wolfgang Sixl
  • Process and filter for removing organic substances and ozone from gases
    Patent number: 5837036
    Abstract: A process in which a gas containing ozone and an organic substance is brought into contact with an ozone-binding polymer to remove the ozone and activated carbon to remove the organic substance. The process preferably makes use of a filter containing an ozone-binding polymer and activated carbon.
    Type: Grant
    Filed: April 7, 1997
    Date of Patent: November 17, 1998
    Assignee: Ticona GmbH
    Inventors: Andreas Schleicher, Jorg Von Eysmondt, Georg Frank
  • Flameproofed polyester molding composition
    Patent number: 5780534
    Abstract: Polyesters such as polyethylene terephthalate or polybutylene terephthalate are provided with a flame-retardant finish by addition of calcium salts or aluminum salts of phosphinic or diphosphinic acids.
    Type: Grant
    Filed: January 8, 1997
    Date of Patent: July 14, 1998
    Assignee: Ticona GmbH
    Inventors: Hans-Jerg Kleiner, Winfried Budzinsky, Gunther Kirsch
  • Low-flammability polyamide molding materials
    Patent number: 5773556
    Abstract: Low-flammability polyamide molding materials are obtained by admixing calcium or aluminum phosphinates. These salts confer improved flame protection on polyamides compared with other metal salts.
    Type: Grant
    Filed: February 27, 1997
    Date of Patent: June 30, 1998
    Assignee: Ticona GmbH
    Inventors: Hans-Jerg Kleiner, Winfried Budzinsky, Gunther Kirsch
  • Magneto-optical recording medium
    Patent number: 5707728
    Abstract: A magneto-optical recording medium containing a substrate formed from polymers which are prepared by polymerization without ring cleavage, of monomers comprising polycyclic olefins, such as norbornene, results in a recording medium having increased thermal dimensional stability and resistance to hydrolysis, and decreased moisture absorption and birefringence.
    Type: Grant
    Filed: May 30, 1995
    Date of Patent: January 13, 1998
    Assignee: Ticona GmbH
    Inventors: Michael-Joachim Brekner, Egon Hellstern, Christoph Weber