Patents by Inventor Jeffrey W. Thornton

Jeffrey W. Thornton 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).

  • Alehyde-containing polymers as wet strength additives
    Publication number: 20030205165
    Abstract: The invention concerns the use of a water-soluble or water-dispersible polymer having a molecular weight of at least 800, containing at least 5 aldehyde groups per molecule and at least 1 carboxyl group per molecule, the ratio of aldehyde groups to carboxyl groups being higher than 0.75:1, as a wet strength additive.
    Type: Application
    Filed: April 25, 2003
    Publication date: November 6, 2003
    Inventors: Jeffrey W. Thornton, Dorine L. Van Brussel-Verraest, Arie Besemer, Sussan Sandberg
  • 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