Patents by Inventor Jarmo Tapio Kahala

Jarmo Tapio Kahala 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 for controlling the delignfication and bleaching of a pulp suspension
    Publication number: 20030168190
    Abstract: The invention relates to a process for the bleaching of an aqueous lignocellulosic pulp under acidic conditions in the bleaching plant of a pulp mill. The bleached pulp is used for the production of paper or pulp. The selectivity of the bleaching agent towards primary reactions with lignin is enhanced by the use of a carbon dioxide providing medium in the pulp.
    Type: Application
    Filed: March 26, 2003
    Publication date: September 11, 2003
    Inventors: Petri Juhana Jokinen, Jarmo Tapio Kahala, Hannu Sakari Sonni