Patents by Inventor John Sandström

John Sandström 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).

  • CELLULOSIC BARRIER COMPOSITION COMPRISING ANIONIC POLYMER
    Publication number: 20190300677
    Abstract: A composition is provided comprising a) cellulose fibres having a number average length of from 0.001 to 0.5 mm and a specific surface area of from 1 to 100 m2/g; b) an at least partially hydrolysed vinyl acetate polymer; and c) at least one anionic polymer. The composition is useful in providing self-supporting films or coating layers for providing barriers to permeable substrates.
    Type: Application
    Filed: March 4, 2019
    Publication date: October 3, 2019
    Applicant: Kemira Oyj
    Inventors: Kerstin Malmborg, Anette Monica Heijnesson-Hultén, John Sandström
  • CELLULOSIC BARRIER COMPOSITION
    Publication number: 20130209772
    Abstract: A composition is provided comprising a) cellulose fibres having a number average length of from 0.001 to 0.5 mm and a specific surface area of from 1 to 100 m2/g and b) an at least partially hydrolysed vinyl acetate polymer. The composition is useful in providing self-supporting films or coating layers for providing barriers to permeable substrates.
    Type: Application
    Filed: May 24, 2011
    Publication date: August 15, 2013
    Applicant: AKZO NOBEL CHEMICALS INTERNATIONAL B.V.
    Inventors: John Sandström, Anette Monica Heijnesson-Hultén, Kerstin Malmborg
  • CELLULOSIC BARRIER COMPOSITION COMPRISING ANIONIC POLYMER
    Publication number: 20130202870
    Abstract: A composition is provided comprising a) cellulose fibres having a number average length of from 0.001 to 0.5 mm and a specific surface area of from 1 to 100 m2/g; b) an at least partially hydrolysed vinyl acetate polymer; and c) at least one anionic polymer. The composition is useful in providing self-supporting films or coating layers for providing barriers to permeable substrates.
    Type: Application
    Filed: May 24, 2011
    Publication date: August 8, 2013
    Applicant: AKZO NOBEL CHEMICALS INTERNATIONAL B.V.
    Inventors: Kerstin Malmborg, Anette Monica Heijnesson-Hultén, John Sandström