Patents Assigned to Ostthuringische Materialprufgesellschaft fur Textil und Kunststoffe mbH
  • Patent number: 6881361
    Abstract: The invention relates to a method for producing shaped bodies, especially threads or foils, from at least one polymer of the groups consisting of polysaccharide, polysaccharide derivative or polyvinyl alcohol by forming a solution of the polymer that contains an additive in a solvent containing amine-N-oxide, extruding the solution and precipitating the extrudate by contacting with a coagulant. The invention is characterized in that at least two polymeric solutions are formed. At least one of the two polymeric solutions contains one or more finely distributed additives and the at least two polymeric solutions are simultaneously extruded forming a combined extrudate.
    Type: Grant
    Filed: February 24, 2000
    Date of Patent: April 19, 2005
    Assignee: Ostthuringische Materialprufgesellschaft fur Textil und Kunststoffe mbH
    Inventors: Thomas Schulze, Eberhard Taeger, Dieter Vorbach
  • Patent number: 5792399
    Abstract: A molding, particularly a fiber or foil molding, of cellulose regenerated an amino-oxide process provides that the cellulose contains 0.02 to 30% mass of a polyalkylene imine derivative. In addition to improved stabilization of the molding compound, the molding or fiber exhibits improved properties, such as an anion exchange capacity, fungistatic properties and an improved hydroblast resistance.
    Type: Grant
    Filed: April 28, 1997
    Date of Patent: August 11, 1998
    Assignee: Ostthuringische Materialprufgesellschaft fur Textil und Kunststoffe mbH
    Inventors: Frank Meister, Christoph Michels, Horst Kramer