Patents by Inventor Jan G. Emanuelsson

Jan G. Emanuelsson 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).

  • Patent number: 4476323
    Abstract: The invention relates to new surface-active quaternary ammonium compounds having the general formula: ##STR1## wherein: R.sub.1 and R.sub.2 are each hydrocarbon groups having from about twelve to about forty carbon atoms;R.sub.3 and R.sub.4 are selected from the group consisting of methyl, ethyl and hydroxyethyl;A is an oxyalkylene group derived from both ethylene oxide and propylene oxide, having a ratio of oxyethylene units to the total number of oxyalkylene groups within the range from about 1:6 to about 5:6;m is a number corresponding to the valence of X;n.sub.1 and n.sub.2 represent the average number of oxyalkylene units and are within the range from about 6 to about 30; andX is an anion.The compounds impart to the treated textiles and cellulosic materials a reduced tendency to retain an electrostatic charge and/or improved softness and/or reduced mechanical strength due to a reduction in interfiber bonding, and at the same time preserve good hydrophilic properties.
    Type: Grant
    Filed: February 24, 1981
    Date of Patent: October 9, 1984
    Inventors: Karl M. E. Hellsten, Jan G. Emanuelsson, Svante L. Wahlen, Axel I. Thebrin
  • Patent number: 4144122
    Abstract: Quaternary ammonium compounds are provided which are useful in the treatment of cellulose pulp and paper to reduce inter-fiber bonding and thereby obtain a low mechanical strength.A process is also provided for the treatment of cellulose pulp or paper therewith to reduce inter-fiber bonding and mechanical strength.
    Type: Grant
    Filed: November 29, 1977
    Date of Patent: March 13, 1979
    Assignee: Berol Kemi AB
    Inventors: Jan G. Emanuelsson, Svante L. Wahlen