Patents by Inventor Airi Saerkilahti

Airi Saerkilahti 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).

  • Patent number: 10774472
    Abstract: The present disclosure relates to cellulose nanomaterials made or derived from tobacco and methods for the production thereof. The tobacco-derived cellulose nanomaterials can be employed in various industrial applications such as film forming applications and solution thickening technologies. In particular, the disclosure is directed to methods for preparing tobacco-derived cellulose nanomaterials using less fibrillation cycles than in the production of wood pulp. The invention includes a method for preparing tobacco derived nanocellulose material comprising receiving a tobacco pulp in a dilute form such that the tobacco pulp is a tobacco pulp suspension with a consistency of less than about 5%; and mechanically fibrillating the tobacco pulp suspension to generate a tobacco derived nanocellulose material having at least one average particle size dimension in the range of about 1 nm to about 100 nm.
    Type: Grant
    Filed: January 18, 2019
    Date of Patent: September 15, 2020
    Assignee: R.J. Reynolds Tobacco Company
    Inventors: Andries Don Sebastian, Samuel Mark DeBusk, David Neil McClanahan, Panu Lahtinen, Marjo Maeaettaenen, Airi Saerkilahti
  • Publication number: 20200232162
    Abstract: The present invention relates to a process for treating textile-based materials, typically textile-based waste-materials, to prepare them for further use. The treatment includes two or more chemical and/or enzymatic treatment steps, including at least one alkaline treatment step, all intended to cause at least a partial dissolution of the textile-based material. Particularly, the process is used for the treatment of cotton-based waste materials.
    Type: Application
    Filed: April 27, 2018
    Publication date: July 23, 2020
    Inventors: Ali Harlin, Marjo Määttänen, Eino Sivonen, Marianna Vehviläinen, Sari Asikainen, Kyösti Valta, Airi Särkilahti
  • Publication number: 20190153673
    Abstract: The present disclosure relates to cellulose nanomaterials made or derived from tobacco and methods for the production thereof. The tobacco-derived cellulose nanomaterials can be employed in various industrial applications such as film forming applications and solution thickening technologies. In particular, the disclosure is directed to methods for preparing tobacco-derived cellulose nanomaterials using less fibrillation cycles than in the production of wood pulp. The invention includes a method for preparing tobacco derived nanocellulose material comprising receiving a tobacco pulp in a dilute form such that the tobacco pulp is a tobacco pulp suspension with a consistency of less than about 5%; and mechanically fibrillating the tobacco pulp suspension to generate a tobacco derived nanocellulose material having at least one average particle size dimension in the range of about 1 nm to about 100 nm.
    Type: Application
    Filed: January 18, 2019
    Publication date: May 23, 2019
    Inventors: Andries Don Sebastian, Samuel Mark DeBusk, David Neil McClanahan, Panu Lahtinen, Marjo Maeaettaenen, Airi Saerkilahti
  • Patent number: 10196778
    Abstract: The present disclosure relates to cellulose nanomaterials made or derived from tobacco and methods for the production thereof. The tobacco-derived cellulose nanomaterials can be employed in various industrial applications such as film forming applications and solution thickening technologies. In particular, the disclosure is directed to methods for preparing tobacco-derived cellulose nanomaterials using less fibrillation cycles than in the production of wood pulp. The invention includes a method for preparing tobacco derived nanocellulose material comprising receiving a tobacco pulp in a dilute form such that the tobacco pulp is a tobacco pulp suspension with a consistency of less than about 5%; and mechanically fibrillating the tobacco pulp suspension to generate a tobacco derived nanocellulose material having at least one average particle size dimension in the range of about 1 nm to about 100 nm.
    Type: Grant
    Filed: March 20, 2017
    Date of Patent: February 5, 2019
    Assignee: R.J. Reynolds Tobacco Company
    Inventors: Andries Don Sebastian, Samuel Mark DeBusk, David Neil McClanahan, Panu Lahtinen, Marjo Maeaettaenen, Airi Saerkilahti
  • Publication number: 20180266053
    Abstract: The present disclosure relates to cellulose nanomaterials made or derived from tobacco and methods for the production thereof. The tobacco-derived cellulose nanomaterials can be employed in various industrial applications such as film forming applications and solution thickening technologies. In particular, the disclosure is directed to methods for preparing tobacco-derived cellulose nanomaterials using less fibrillation cycles than in the production of wood pulp. The invention includes a method for preparing tobacco derived nanocellulose material comprising receiving a tobacco pulp in a dilute form such that the tobacco pulp is a tobacco pulp suspension with a consistency of less than about 5%; and mechanically fibrillating the tobacco pulp suspension to generate a tobacco derived nanocellulose material having at least one average particle size dimension in the range of about 1 nm to about 100 nm.
    Type: Application
    Filed: March 20, 2017
    Publication date: September 20, 2018
    Inventors: Andries Don Sebastian, Samuel Mark DeBusk, David Neil McClanahan, Panu Lahtinen, Marjo Maeaettaenen, Airi Saerkilahti