Patents by Inventor Berit Ingegard Simonsson

Berit Ingegard Simonsson 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).

  • Process for sizing cellulose fibres
    Patent number: 3940519
    Abstract: The present invention relates to a process for sizing cellulose fibers or cellulose fiber-containing materials by using modified starch containing hydrophobic groups having the general formula ##EQU1## wherein R.sub.1 is an organic, hydrophobic hydrocarbon group having 8-40 carbon atoms and R.sub.2 is a C.sub.1 -C.sub.8 alkyl group or has the same meaning as R.sub.1.
    Type: Grant
    Filed: May 15, 1974
    Date of Patent: February 24, 1976
    Assignee: Kemanord AB
    Inventors: Karin Ulla Elisabet Helmer, Berit Ingegard Simonsson