Patents by Inventor Seppo Sarela

Seppo Sarela 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 manufacturing base paper for release paper
    Patent number: 7387703
    Abstract: In a method for manufacturing base paper for release paper, the body layer, which is formed of a fibre raw material, is surface sized with a surface treatment agent. Before the surface sizing, the body layer, whose moisture level is at least 13 wt. %, is calendered in a calender that comprises at least one nip formed between a hard-faced roll and a soft counter surface.
    Type: Grant
    Filed: November 24, 2004
    Date of Patent: June 17, 2008
    Assignee: UPM-Kymmene Corporation
    Inventors: Timo Koskinen, Kaj Koskinen, Pekka Aho, Seppo Särelä
  • Method for manufacturing base paper for release paper
    Publication number: 20050126729
    Abstract: In a method for manufacturing base paper for release paper, the body layer, which is formed of a fibre raw material, is surface sized with a surface treatment agent. Before the surface sizing, the body layer, whose moisture level is at least 13 wt. %, is calendered in a calender that comprises at least one nip formed between a hard-faced roll and a soft counter surface.
    Type: Application
    Filed: November 24, 2004
    Publication date: June 16, 2005
    Inventors: Timo Koskinen, Kaj Koskinen, Pekka Aho, Seppo Sarela
  • Printing paper and a method for manufacturing the same
    Publication number: 20040200593
    Abstract: In the method for manufacturing printing paper the base paper of the printing paper contains mechanical pulp and/or recycled fibre. The method also comprises the surface sizing and calendering of the base paper. In the method the base paper is calendered before surface sizing in a calender that comprises at least one nip that is formed between a hard-faced roll and a soft counter surface. The invention also relates to a printing paper manufactured by means of the method.
    Type: Application
    Filed: December 29, 2003
    Publication date: October 14, 2004
    Applicant: UPM-Kymmene Corporation
    Inventors: Timo Koskinen, Pekka Aho, Seppo Sarela