Patents by Inventor Johan A. Larsson

Johan A. Larsson 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).

  • Publication number: 20250215647
    Abstract: The present disclosure relates to a coated paper product comprising: a paper sheet substrate; and a barrier coating on a first side of the paper sheet substrate, wherein the barrier coating comprises talc and a polyolefin-based binder and wherein the amount of talc in the barrier coating is 15-40 wt-% based on the dry weight of the barrier coating. The present disclosure furthermore relates to a method for producing the coated paper product and a use of the coated paper product.
    Type: Application
    Filed: December 29, 2023
    Publication date: July 3, 2025
    Inventors: Wouter Prosper, Johan A. Larsson
  • Publication number: 20250059713
    Abstract: There is provided a coated paperboard product comprising:—a paperboard substrate: and—a barrier coating, wherein the barrier coating comprises talc and a polyolefin-based binder and wherein the amount of tale in the barrier coating is 15-40 wt-% based on the dry weight of the barrier coating; and—a pre-coating arranged between the paperboard substrate and the barrier coating.
    Type: Application
    Filed: December 22, 2022
    Publication date: February 20, 2025
    Inventors: Wouter Prosper, Johan A. Larsson
  • Publication number: 20250052010
    Abstract: The present disclosure provides a coated paper product comprising: —a paper or paperboard substrate: —a barrier coating, wherein the barrier coating comprises graphene and a polyolefin copolymer bearing carboxylic acid moieties, wherein the polyolefin copolymer bearing carboxylic acid moieties preferably is ethylene-acrylic acid copolymer (EAA) or ethylene-methacrylic-acid-copolymer (EMAA) or maleic acid ethylene copolymer (MAE), and wherein the graphene content in the barrier coating is 0.3-3 wt %. There is also provided a coated paper product comprising high surface area graphite flakes having an average particle size of 2-7 ?m instead of the graphene.
    Type: Application
    Filed: December 7, 2022
    Publication date: February 13, 2025
    Inventors: Thomas Gillgren, Johan A. Larsson
  • Publication number: 20250027274
    Abstract: There is provided a product comprising a paper substrate and a first coating provided on the substrate, wherein the first coating comprises starch and calcium carbonate pigment.
    Type: Application
    Filed: November 23, 2022
    Publication date: January 23, 2025
    Inventor: Johan A. Larsson
  • Publication number: 20240401278
    Abstract: The present disclosure provides a coated paper product comprising:—a paper substrate comprising a first and second side:—a first coating layer on the first side of the paper substrate, wherein the first coating layer comprises ethylene-acrylic acid (EAA) or vinyl acetate acrylate copolymer (VAcA) or styrene-acrylate (SA) or acrylic latex; and—a second coating layer on the first coating layer, wherein the second coating layer comprises EAA and talc, and wherein the dry weight ratio of EAA to tale in the second coating layer is between 100:5 and 100:70,—wherein the coat weight of the first coating layer is at least 4 g/m2, and—wherein the coat weight of the second coating layer is at least 3 g/m2.
    Type: Application
    Filed: September 27, 2022
    Publication date: December 5, 2024
    Inventors: Thomas Gillgren, Johan A. Larsson, Wouter Prosper