Patents by Inventor Gisela Cunha

Gisela Cunha 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).

  • COATED CELLULOSE-BASED SUBSTRATE
    Publication number: 20240076461
    Abstract: The present invention relates to a coated cellulose-based substrate, comprising a cellulose-based substrate, and a coating layer disposed on said cellulose-based substrate, wherein said coating layer comprises regenerated cellulose and wherein said coating layer has been hydrophobized with a hydrophobizing agent. The invention further relates to a method for manufacturing the coated cellulose-based substrate.
    Type: Application
    Filed: January 20, 2022
    Publication date: March 7, 2024
    Applicant: Stora Enso OYJ
    Inventors: Gisela CUNHA, Carl-Magnus Brandèn, Adeel Shahzad, Mikael Gällstedt
  • PARTICLES OF DRIED MICROFIBRILLATED CELLULOSE AND THE USE THEREOF
    Publication number: 20220325003
    Abstract: Hornificated microfibri Mated cellulose (MFC) particles are provided, which are useful as an abrasive material in personal care products. Personal care products comprising such particles are also provided.
    Type: Application
    Filed: June 18, 2020
    Publication date: October 13, 2022
    Applicant: Stora Enso OYJ
    Inventors: Gisela Cunha, Kaj Backfolk
  • SURFACE-TREATED FIBROUS MATERIALS AND METHODS FOR THEIR PREPARATION
    Publication number: 20210372051
    Abstract: The present invention relates to a method for preparing a surface-treated fibrous material comprising phosphorylated nanocellulose, in which a fibrous material is surface treated with a solution comprising at least one multivalent metal ion followed by drying and post-curing to improve the barrier properties of the material. Fibrous materials as such are also provided.
    Type: Application
    Filed: December 20, 2019
    Publication date: December 2, 2021
    Applicant: Stora Enso OYJ
    Inventors: Isto Heiskanen, Katja Lyytikäinen, Gisela Cunha, Kaj Backfolk
  • CROSS-LINKABLE CELLULOSE AS 3D PRINTING MATERIAL
    Publication number: 20210277265
    Abstract: A method for 3D printing is provided, using crosslinkable microfibrillated cellulose (MFC). The 3D printed structure is treated to provide crosslinking of the MFC.
    Type: Application
    Filed: June 11, 2019
    Publication date: September 9, 2021
    Applicant: Stora Enso OYJ
    Inventors: Gisela Cunha, Heidi Saxell, Robin Grankvist
  • SPINNING MICROFIBRILLATED CELLULOSE
    Publication number: 20210017671
    Abstract: A method is provided for preparing a fibrous material (preferably a mat or filaments) of crosslinked microfibrillated cellulose. Phosphorylated microfibrillated cellulose is spun into a fibrous material; and then said fibrous material is post-treated (e.g. by heat-treatment) to provide crosslinking between the phosphorylated microfibrillated cellulose. Fibrous materials such as filaments or mats, and hygiene products comprising such materials are also described.
    Type: Application
    Filed: December 20, 2018
    Publication date: January 21, 2021
    Applicant: Stora Enso OYJ
    Inventors: Gisela Cunha, Heidi Saxell
  • FILAMENTS OF MICROFIBRILLATED CELLULOSE
    Publication number: 20200339783
    Abstract: A method is provided for preparing a fibrous material of crosslinked microfibrillated cellulose. Dialdehyde microfibrillated cellulose is spun into a fibrous material; said fibrous material is pre- or post-treated (by reduction of pH) to provide crosslinking between the dialdehyde microfibrillated cellulose. Fibrous materials such as filaments or mats, and polymer composites comprising such materials are also described.
    Type: Application
    Filed: December 20, 2018
    Publication date: October 29, 2020
    Applicant: Stora Enso OYJ
    Inventors: Gisela Cunha, Heidi Saxell
  • FILMS OF MICROFIBRILLATED CELLULOSE
    Publication number: 20200340183
    Abstract: A method is provided for preparing a film of crosslinked microfibrillated cellulose. Phosphorylated microfibrillated cellulose is cast or wet-laid into a film; and then said film is post-treated (e.g. by heat-treatment) to provide crosslinking between the phosphorylated microfibrillated cellulose. Films and hygiene products comprising such films are also described.
    Type: Application
    Filed: December 20, 2018
    Publication date: October 29, 2020
    Applicant: Stora Enso OYJ
    Inventors: Gisela Cunha, Heidi Saxell