Patents by Inventor John S. Michelman

John S. Michelman 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).

  • Method of dispersing wax from a hot melt wax-coated paper
    Patent number: 6273993
    Abstract: The present invention relates generally to a hot melt wax coating composition containing at least one chemical compound which is either itself capable of acting as a latent dispersant for the coating or capable of being chemically modified so as to act as a dispersant for the coating, within an aqueous environment, thus rendering the hot melt coating more readily redispersable. The present invention also relates to a coated paper product using such coating which renders the coated paper more readily repulpable (recyclable) with standard paper mill equipment. Other related aspects of the present invention include a method of coating paper with the novel coating composition and a method of repulping such coated paper.
    Type: Grant
    Filed: January 11, 1995
    Date of Patent: August 14, 2001
    Assignee: Michelman, Inc.
    Inventor: John S. Michelman
  • Repulpable hot melt paper coating and coated product
    Patent number: 6255375
    Abstract: A hot melt wax coating composition and hot melt wax coated paper product are provided which coating contains at least one chemical compound which is either itself capable of acting as a latent dispersant for the coating or capable of being chemically modified so as to act as a dispersant for the coating, within an aqueous environment, thus rendering the hot melt coating more readily dispersable from the coated paper. The coated paper product is repulpable using standard paper mill equipment.
    Type: Grant
    Filed: November 4, 1996
    Date of Patent: July 3, 2001
    Assignee: Michelman, Inc.
    Inventor: John S. Michelman