Patents by Inventor Susana Gonzalez Alonso

Susana Gonzalez Alonso 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).

  • Procedure for obtaining nanofibrillated cellulose from recovered paper
    Patent number: 8900406
    Abstract: A procedure for obtaining nanofibrillated cellulose starting from a raw material including recycled or recovered paper, or recovered paper pulp or recovered cellulose comprises the stages of: immersing the raw material in an acetic acid dilution, in a concentration of 10% to 50% by volume, during a time inverse to the concentration of acetic acid; stirring the raw material immersed in the acetic acid dilution; and subsequently subjecting the cellulosic material to a mechanical process of longitudinal separation of fibers, by shear forces applied through a mixer or similar equipment capable of creating enough shearing on cellulose pulp. Thanks to the above procedure nanofibrillated cellulose from recycled paper is obtained with similar features to the nanofibrillated cellulose obtained from virgin cellulose.
    Type: Grant
    Filed: May 3, 2013
    Date of Patent: December 2, 2014
    Assignee: Saica Pack, S.L.
    Inventors: Pablo Gonzalez Miguel, Ana Cristina Crespo Miñana, Gemma Ibarz Ric, Susana Gonzalez Alonso, Azucena Gonzalez Alvarez, Alberto Mena Diaz de Corcuera
  • PROCEDURE FOR OBTAINING NANOFIBRILLATED CELLULOSE FROM RECOVERED PAPER
    Publication number: 20130292070
    Abstract: A procedure for obtaining nanofibrillated cellulose starting from a raw material including recycled or recovered paper, or recovered paper pulp or recovered cellulose comprises the stages of: immersing the raw material in an acetic acid dilution, in a concentration of 10% to 50% by volume, during a time inverse to the concentration of acetic acid; stirring the raw material immersed in the acetic acid dilution; and subsequently subjecting the cellulosic material to a mechanical process of longitudinal separation of fibres, by shear forces applied through a mixer or similar equipment capable of creating enough shearing on cellulose pulp. Thanks to the above procedure nanofibrillated cellulose from recycled paper is obtained with similar features to the nanofibrillated cellulose obtained from virgin cellulose.
    Type: Application
    Filed: May 3, 2013
    Publication date: November 7, 2013
    Inventors: Pablo Gonzalez Miguel, Ana Cristina Crespo Miñana, Gemma Ibarz Ric, Susana Gonzalez Alonso, Azucena Gonzalez Alvarez, Alberto Mena Diaz de Corcuera