Patents by Inventor Christer S. Eckerman

Christer S. Eckerman 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).

  • Treatment of alkaline bleached mechanical wood pulp with pectinase
    Patent number: 5487812
    Abstract: The present invention relates to a method of making paper from bleached or alkaline treated pulp by dewatering pulp containing bleached or alkaline treated vegetable fibers from wood or non-wood species. It was found that such bleached or alkaline treated pulps contain a substantial amount of harmful pectins. By incorporating pectinase in the bleached or alkaline treated pulp such harmful pectins in the aqueous phase of the pulp are degraded and thus rendered harmless to papermaking processes.
    Type: Grant
    Filed: August 23, 1994
    Date of Patent: January 30, 1996
    Assignee: Mesta-Serla Oy
    Inventors: Jeffrey W. Thornton, Christer S. Eckerman, Rainer O. Ekman, Bjarne R. Holmbom