Patents by Inventor Hannu AHONIEM

Hannu AHONIEM 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).

  • COMPOSITE NONWOVEN SHEET MATERIAL
    Publication number: 20220298686
    Abstract: A composite nonwoven sheet material comprising a reinforcement layer comprising mainly reinforcement filaments, a pulp layer comprising mainly pulp fibers, and a surface layer comprising mainly microfibers, wherein the pulp layer is interposed between the reinforcement layer and the surface layer, and wherein the pulp fibers are entangled with the reinforcement filaments and the microfibers. A process of producing a composite nonwoven sheet material, comprising: forming a fibrous web comprising a reinforcement layer comprising mainly reinforcement filaments, a pulp layer comprising mainly pulp fibers, and a surface layer comprising mainly microfibers, wherein the pulp layer is interposed between the reinforcement layer and the surface layer; and hydroentangling the fibrous web to form the composite nonwoven sheet material.
    Type: Application
    Filed: October 11, 2019
    Publication date: September 22, 2022
    Applicant: Essity Hygiene and Health Aktiebolag
    Inventors: Maria Bogren, Mikael STRANDQVIST, Hannu AHONIEM