Patents by Inventor Braz José Demuner

Braz José Demuner 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: 11598049
    Abstract: The present invention refers to the separation of cellulose pulp into distinct fractions with different draining and morphological characteristics, as well as the use of part of these fractions for the production of nanocellulose. The process in reference combines the unitary operations of fiber separation, thickening to a certain consistency, draining and drying of the cellulosic pulp with the high drainage ability and production of nanocellulose from high primary fines content pulp. The process may consider any cellulosic pulp fiber derived from short or long fiber woods such as Eucalyptus, Corymbia, Birch, Aspen, Pinus, recycled fibers, etc., their residues such as bark, sawdust, etc.
    Type: Grant
    Filed: November 23, 2017
    Date of Patent: March 7, 2023
    Assignee: SUZANO S.A.
    Inventors: Heloisa Ogushi Romeiro Ramires, Braz José Demuner
  • Publication number: 20200109512
    Abstract: The present invention refers to a process for producing cellulose of market eucalyptus fibers having distinct features through the use of at least one enzymatic treatment with hydrolytic enzymes, such as for example, xylanases, cellulases or mixtures thereof, in association to at least one acidic treatment step. These treatments may be applied into different steps of the fibers process producing, wherein all of them happen before drying.
    Type: Application
    Filed: December 9, 2019
    Publication date: April 9, 2020
    Inventors: Braz Jose Demuner, Otavio Mambrim Filho
  • Patent number: 10519597
    Abstract: The present invention refers to a process for producing cellulose of market eucalyptus fibers having distinct features through the use of at least one enzymatic treatment with hydrolytic enzymes, such as for example, xylanases, cellulases or mixtures thereof, in association to at least one acidic treatment step. These treatments may be applied into different steps of the fibers process producing, wherein all of them happen before drying.
    Type: Grant
    Filed: October 16, 2009
    Date of Patent: December 31, 2019
    Assignee: Suzano S.A.
    Inventors: Braz Jose Demuner, Otavio Mambrim Filho
  • Publication number: 20190301094
    Abstract: The present invention refers to the separation of cellulose pulp into distinct fractions with different draining and morphological characteristics, as well as the use of part of these fractions for the production of nanocellulose. The process in reference combines the unitary operations of fiber separation, thickening to a certain consistency, draining and drying of the cellulosic pulp with the high drainage ability and production of nanocellulose from high primary fines content pulp. The process may consider any cellulosic pulp fiber derived from short or long fiber woods such as Eucalyptus, Corymbia, Birch, Aspen, Pinus, recycled fibers, etc., their residues such as bark, sawdust, etc.
    Type: Application
    Filed: November 23, 2017
    Publication date: October 3, 2019
    Applicant: FIBRIA CELULOSE S.A.
    Inventors: Heloisa Ogushi Romeiro RAMIRES, Braz José DEMUNER
  • Publication number: 20120322997
    Abstract: The present invention refers to a process for producing cellulose of market eucalyptus fibers having distinct features through the use of at least one enzymatic treatment with hydrolytic enzymes, such as for example, xylanases, cellulases or mixtures thereof, in association to at least one acidic treatment step. These treatments may be applied into different steps of the fibers process producing, wherein all of them happen before drying.
    Type: Application
    Filed: October 16, 2009
    Publication date: December 20, 2012
    Applicant: ARACRUZ CELULOSE S.A.
    Inventors: Braz José Demuner, Otávio Mambrim Filho