Patents by Inventor Asbjorn Braketas

Asbjorn Braketas 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).

  • Treatment of cellulose during bleaching with agent capable of reducing carbonyl groups
    Publication number: 20070199668
    Abstract: The present invention relates to a method for treating a mixture containing cellulose, comprising at least one step of adding at least one agent capable of reducing carbonyl groups. The invention further relates to a specialty cellulose pulp, obtained by a method comprising treatment. Furthermore, the invention relates to the use of the specialty cellulose pulp according to the invention or the specialty cellulose pulp obtained by a method according to the invention for the production of cellulose derivatives or materials containing cellulose molecules, including but not limited to, cellulose ethers or cellulose esters. Cellulose derivatives obtained from the specialty cellulose pulp according to the invention display increased viscosity and/or improved brightness over cellulose derivatives obtained from specialty cellulose pulp not subjected to the inventive treatment.
    Type: Application
    Filed: October 26, 2005
    Publication date: August 30, 2007
    Inventors: Justin Scarpello, Asbjorn Braketas, Ove Bartholsen, Torgeir Hjerde
  • Treatment of cellulose during bleaching with agent capable of reducing carbonyl groups
    Publication number: 20070151680
    Abstract: The present invention relates to a method for treating a mixture containing cellulose, comprising at least one step of adding at least one agent capable of reducing carbonyl groups. The invention further relates to a specialty cellulose pulp, obtained by a method comprising treatment. Furthermore, the invention relates to the use of the specialty cellulose pulp according to the invention or the specialty cellulose pulp obtained by a method according to the invention for the production of cellulose derivatives or materials containing cellulose molecules, including but not limited to, cellulose ethers or cellulose esters. Cellulose derivatives obtained from the specialty cellulose pulp according to the invention display increased viscosity and/or improved brightness over cellulose derivatives obtained from specialty cellulose pulp not subjected to the inventive treatment.
    Type: Application
    Filed: October 26, 2005
    Publication date: July 5, 2007
    Inventors: Justin Scarpello, Asbjorn Braketas, Ove Bartholsen, Torgeir Hjerde
  • Treatment of cellulose during bleaching with agent capable of reducing carbonyl groups
    Publication number: 20060249265
    Abstract: The present invention relates to a method for treating a mixture containing cellulose, comprising at least one step of adding at least one agent capable of reducing carbonyl groups. The invention further relates to a specialty cellulose pulp, obtained by a method comprising treatment. Furthermore, the invention relates to the use of the specialty cellulose pulp according to the invention or the specialty cellulose pulp obtained by a method according to the invention for the production of cellulose derivatives or materials containing cellulose molecules, including but not limited to, cellulose ethers or cellulose esters. Cellulose derivatives obtained from the specialty cellulose pulp according to the invention display increased viscosity and/or improved brightness over cellulose derivatives obtained from specialty cellulose pulp not subjected to the inventive treatment.
    Type: Application
    Filed: October 26, 2005
    Publication date: November 9, 2006
    Inventors: Justin Scarpello, Asbjorn Braketas, Ove Bartholsen, Torgeir Hjerde, Gunnar Merz