Patents by Inventor Scott William Rosencrance

Scott William Rosencrance 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).

  • Deinking blends for use in reduced alkali systems
    Patent number: 7767057
    Abstract: The present invention relates to methods and compositions for deinking waste paper, optionally in non-alkaline or low-alkaline systems. Deinking compositions are provided that include a blend of an alkoxylated fatty alcohol and a fatty acid. The compositions may further include a second alkoxylated fatty alcohol. The deinking compositions also may include a first non-alkoxylated fatty acid and optionally a second alkoxylated fatty acid. Cationic derivatives such as cationic polymers also may be added to the deinking blend.
    Type: Grant
    Filed: January 8, 2007
    Date of Patent: August 3, 2010
    Assignee: Kemira Chemicals, Inc.
    Inventors: Scott William Rosencrance, Charles Mesumbe Ngome
  • Method of deinking waste paper using a reduced alkali system
    Patent number: 7169257
    Abstract: The present invention relates to methods and compositions for deinking waste paper, optionally in non-alkaline or low-alkaline systems. Deinking compositions are provided that include a blend of an alkoxylated fatty alcohol and a fatty acid. The compositions may further include a second alkoxylated fatty alcohol. The deinking compositions also may include a first non-alkoxylated fatty acid and optionally a second alkoxylated fatty acid. Cationic derivatives such as cationic polymers also may be added to the deinking blend.
    Type: Grant
    Filed: November 12, 2003
    Date of Patent: January 30, 2007
    Assignee: Kemira Chemicals, Inc.
    Inventors: Scott William Rosencrance, Charles Mesumbe Ngome