Patents by Inventor Yahia RHARBI

Yahia RHARBI 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).

  • Process and device for manufacturing a laminated material comprising a fibrillated cellulose layer
    Patent number: 10618015
    Abstract: The invention relates to a process for manufacturing a laminated material (S) comprising a fibrillated cellulose layer, characterized in that it comprises the following steps: (a) depositing a suspension (1) of fibrillated cellulose on a filtration membrane (2) and draining the suspension through that membrane so as to form a wet layer of fibrillated cellulose (A) having a dryness, that is to say a ratio between the mass of dry matter and the total mass of the fibrillated cellulose layer, of between 5% and 18%; (b) transferring the wet layer (A) under pressure to an at least partially hydrophilic surface of a substrate (B), so as to form the laminated material (S); (c) drying the laminated material. The invention also relates to a device for implementing the process.
    Type: Grant
    Filed: April 27, 2016
    Date of Patent: April 14, 2020
    Assignees: CENTRE TECHNIQUE DU PAPIER, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (CNRS)
    Inventors: David Guerin, Yahia Rharbi, Patrick Huber, Valérie Meyer
  • PROCESS AND DEVICE FOR MANUFACTURING A LAMINATED MATERIAL COMPRISING A FIBRILLATED CELLULOSE LAYER
    Publication number: 20180141009
    Abstract: The invention relates to a process for manufacturing a laminated material (S) comprising a fibrillated cellulose layer, characterized in that it comprises the following steps: (a) depositing a suspension (1) of fibrillated cellulose on a filtration membrane (2) and draining the suspension through that membrane so as to form a wet layer of fibrillated cellulose (A) having a dryness, that is to say a ratio between the mass of dry matter and the total mass of the fibrillated cellulose layer, of between 5% and 18%; (b) transferring the wet layer (A) under pressure to an at least partially hydrophilic surface of a substrate (B), so as to form the laminated material (S); (c) drying the laminated material. The invention also relates to a device for implementing the process.
    Type: Application
    Filed: April 27, 2016
    Publication date: May 24, 2018
    Applicants: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (CNRS), CENTRE TECHNIQUE DU PAPIER
    Inventors: David GUERIN, Yahia RHARBI, Patrick HUBER, Valérie MEYER