Patents by Inventor Ingmar Uneback

Ingmar Uneback 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).

  • Method for improving the rheology and the processability of cellulose-based spinning solutions
    Patent number: 5582637
    Abstract: The invention relates to the addition of an alkoxylate having the formula (I) X(NX-R).sub.n NX.sub.2 and/or an alkoxylate having formula (II) wherein X is hydrogen, the group R.sub.1 CO-, in which R.sub.1 is a hydrocarbon group having 7-23 carbon atoms or the group -(B).sub.m H, in which B is an alkyleneoxy group having 2-4 carbon atoms and m is 1-7, provided the number of groups of formula R.sub.ICO is 1 or 2 and the total number of B is 2-20, R is an alkylen group having 2-3 carbon atoms and n is 2-10, preferably 3-7, to improve the rheology and the processability of a cellulose-based spinning solution.
    Type: Grant
    Filed: October 12, 1995
    Date of Patent: December 10, 1996
    Assignee: Akzo Nobel Surface Chemistry AB
    Inventors: Ingmar Uneback, Margreth Strandberg, Carl-Axel Soderlund