With Boron Compound Patents (Class 106/170.19)
  • Cellulose carbamate spinning solution, method for producing a cellulose carbamate nonwoven, and use of the same
    Patent number: 8263507
    Abstract: The present invention relates to a cellulose carbamate spinning solution, the cellulose carbamate being dissolved in an ionic liquid. The invention relates furthermore to a method for the production of nonwovens in which the cellulose carbamate spinning solution is pressed through the holes of a nozzle bar and stretched by a multiple by means of an air flow. The formed fiber curtain is laid on a perforated conveyer belt, washed and dried. Likewise, the invention relates to nonwovens of this type and also the use thereof.
    Type: Grant
    Filed: April 7, 2009
    Date of Patent: September 11, 2012
    Assignee: Fraunhofer-Gesellschaft zur Forderung der angewandten Forschung, e.V.
    Inventors: Horst Ebeling, Hans-Peter Fink