Patents by Inventor Susanna HOLAPPA

Susanna HOLAPPA 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 reducing colour of a biotechnological liquid
    Patent number: 10604546
    Abstract: The invention relates to a method for reducing colour of a biotechnological liquid. In the method a biotechnological liquid comprising colour forming substances is obtained and a high-basicity aluminium compound, which has a basicity of at least 0%, is added and mixed to the biotechnological liquid. Precipitate and/or flocks comprising colour forming substances are allowed to form, and the precipitate and/or flocks are separated from the biotechnological liquid.
    Type: Grant
    Filed: November 5, 2014
    Date of Patent: March 31, 2020
    Assignee: Kemira Oyj
    Inventors: Susanna Holappa, Michael Recktenwald
  • Method for preparing a dry cationic hydrogel polymer product, polymer product and its use
    Patent number: 10081689
    Abstract: The invention relates to a method for preparing a dry cationic hydrogel polymer product. The method comprises polymerization of a reaction mixture comprising ethylenically unsaturated monomers in presence of water and initiator(s) by radical polymerization and obtaining a hydrogel polymer. The hydrogel polymer is comminuted by chopping or shredding, and dried, whereby a dry hydrogel polymer product in powder form is obtained. At least one cationic reverse phase emulsion polymer is added to the hydro polymer at the comminuting step. The invention relates also to a dry cationic hydrogel polymer composition prepared by the method and its use.
    Type: Grant
    Filed: November 17, 2015
    Date of Patent: September 25, 2018
    Assignee: Kemira Oyj
    Inventors: Ronald Van Rossum, Susanna Holappa, Lasse Kyllönen
  • Method for preparing a dry cationic hydrogel polymer product, polymer product and its use
    Publication number: 20170320979
    Abstract: The invention relates to a method for preparing a dry cationic hydrogel polymer product. The method comprises polymerisation of a reaction mixture comprising ethylenically unsaturated monomers in presence of water and initiator(s) by radical polymerisation and obtaining a hydrogel polymer. The hydrogel polymer is comminuted by chopping or shredding, and dried, whereby a dry hydrogel polymer product in powder form is obtained. At least one cationic reverse phase emulsion polymer is added to the hydro polymer at the comminuting step. The invention relates also to a dry cationic hydrogel polymer composition prepared by the method and its use.
    Type: Application
    Filed: November 17, 2015
    Publication date: November 9, 2017
    Applicant: Kemira Oyj
    Inventors: Ronald VAN ROSSUM, Susanna HOLAPPA, Lasse KYLLÖNEN
  • Method for reducing colour of a biotechnological liquid
    Publication number: 20160289266
    Abstract: The invention relates to a method for reducing colour of a biotechnological liquid. In the method a biotechnological liquid comprising colour forming substances is obtained and a high-basicity aluminium compound, which has a basicity of at least 0%, is added and mixed to the biotechnological liquid. Precipitate and/or flocks comprising colour forming substances are allowed to form, and the precipitate and/or flocks are separated from the biotechnological liquid.
    Type: Application
    Filed: November 5, 2014
    Publication date: October 6, 2016
    Applicant: Kemira Oyj
    Inventors: Susanna HOLAPPA, Michael RECKTENWALD