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
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