Patents by Inventor Turid Ekengren

Turid Ekengren 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 fibers
    Patent number: 4123319
    Abstract: The present invention relates to a process for sizing cellulose fibres or cellulose fibre containing materials and to a composition for carrying out the process. More particularly the invention relates to a process for sizing according to which cellulose fibres in a manner known per se are brought into contact with compounds having the general formula ##STR1## WHERE X is the group ##STR2## wherein R.sub.1 is an organic, hydrophobic group having 8 to 40 carbon atoms and R.sub.2, R.sub.3, R.sub.4 and R.sub.5 independent of each other are alkyl groups having 1 to 7 carbon atoms or have the same meaning as R.sub.1.
    Type: Grant
    Filed: March 1, 1976
    Date of Patent: October 31, 1978
    Assignee: KemaNobel AB
    Inventors: James Axel C. Bjorklund, Turid Ekengren
  • Process for sizing cellulose fibers with sulfamoylchlorides
    Patent number: 4043863
    Abstract: The present invention relates to a process for sizing cellulose fibers or cellulose fiber containing materials and to a composition for carrying out the process. More particularly the invention relates to a process for sizing according to which cellulose fibers or cellulose fiber containing materials in a manner known per se are brought into contact with compounds having the general formula ##STR1## WHEREIN R.sub.1 is an organic, hydrophobic group having 8 to 40 carbon atoms and R.sub.2 is an alkyl group having 1 to 7 carbon atoms or has the same meaning as R.sub.1.
    Type: Grant
    Filed: March 1, 1976
    Date of Patent: August 23, 1977
    Assignee: Kemanord Aktiebolag
    Inventors: James Axel Christer Bjorklund, Turid Ekengren